ANALYSIS OF LUNAR ECLIPSE CRATER TIMING OBSERVATIONS

another Calwell Lunar Observatory page

Individual Observer's crater timing reductions for

1997 September 16

Amended 1997 December 4

OBSERVER 1: ANDERSON PETER Taylor Range Observatory The Gap Brisbane Queensland Australia

Longitude: 152o 55' 54.04" E, Latitude: -27o 27' 47.96" S, Altitude: 176.3 m

Instrument: 41 cm f/6 Newtonian X 198 Timing: Stopwatch and VNG

NUMBER OF TIMINGS SUBMITTED 40

 

IMMERSION TIMINGS

FEATURE

TYPE

TIME (UT)

Rc

Ro

Ro - Rc

E %

PSI

(+N/-S)

X

Y

R











SECOND CONTACT

PRIMARY

18.1540

0.7404

0.7548

0.0144

1.9462

-68.8956

0.7216

-0.6923

1.0000

GRIMALDI

1 C

17.1215

0.7411

0.7477

0.0066

0.8878

-46.8773

-0.9337

-0.0915

0.9381

GRIMALDI

2 C

17.1330

0.7411

0.7576

0.0165

2.2215

-47.3311

-0.9336

-0.0915

0.9381

ARISTARCHUS

1 C

17.1530

0.7414

0.7514

0.0100

1.3503

36.6529

-0.6901

0.4004

0.7978

ARISTARCHUS

2 C

17.1545

0.7414

0.7532

0.0118

1.5964

36.7130

-0.6901

0.4004

0.7978

BILLY

MID

17.1950

0.7406

0.7553

0.0147

1.9886

-51.0885

-0.7576

-0.2401

0.7947

LAPLACE

MID

17.2450

0.7417

0.7532

0.0115

1.5442

30.8664

-0.3179

0.7177

0.7850

COPERNICUS

1 C

17.2550

0.7407

0.7578

0.0171

2.3057

42.3986

-0.3568

0.1661

0.3936

COPERNICUS

2 C

17.2720

0.7407

0.7579

0.0172

2.3248

42.8622

-0.3566

0.1661

0.3934

GASSENDI

1 C

17.2355

0.7403

0.7542

0.0139

1.8754

-52.6871

-0.6262

-0.3026

0.6955

GASSENDI

2 C

17.2600

0.7403

0.7537

0.0134

1.8072

-53.5772

-0.6259

-0.3026

0.6952

PICO

MID

17.3020

0.7416

0.7540

0.0124

1.6777

31.3720

-0.1228

0.7175

0.7280

ERATOSTHENES

1 C

17.2930

0.7407

0.7594

0.0187

2.5226

41.0121

-0.2094

0.2479

0.3245

ERATOSTHENES

2 C

17.3015

0.7407

0.7616

0.0209

2.8190

41.2300

-0.2093

0.2479

0.3244

ARCHIMEDES

1 C

17.3140

0.7411

0.7568

0.0157

2.1191

36.0645

-0.0783

0.4932

0.4994

ARCHIMEDES

2 C

17.3259

0.7411

0.7570

0.0159

2.1472

36.3758

-0.0781

0.4932

0.4994

ARISTILLUS

1 C

17.3355

0.7412

0.7559

0.0147

1.9791

35.0411

0.0007

0.5541

0.5541

ARISTILLUS

2 C

17.3445

0.7412

0.7570

0.0158

2.1318

35.2247

0.0008

0.5541

0.5541

AUTOLYCUS

1 C

17.3440

0.7411

0.7535

0.0124

1.6770

36.1557

0.0038

0.5068

0.5068

SCHICKARD

1 C

17.3215

0.7402

0.7507

0.0105

1.4176

-63.0326

-0.5907

-0.7007

0.9165

LINNE

MID

17.3945

0.7410

0.7549

0.0138

1.8690

37.5952

0.1628

0.4626

0.4904

MANILIUS

1 C

17.4022

0.7406

0.7599

0.0193

2.6054

42.2432

0.1331

0.2462

0.2799

MANILIUS

2 C

17.4059

0.7406

0.7483

0.0076

1.0290

42.4377

0.1332

0.2462

0.2799

MENELAUS

1 C

17.4400

0.7407

0.7536

0.0129

1.7428

42.0594

0.2458

0.2766

0.3700

DIONYSIUS

MID

17.4710

0.7403

0.7538

0.0135

1.8188

47.3896

0.2780

0.0463

0.2818

THEOPHILUS

2 C

17.5550

0.7400

0.7402

0.0001

0.0163

-54.2235

0.4194

-0.2000

0.4647

PROCLUS

MID

17.5645

0.7409

0.7548

0.0138

1.8663

43.2370

0.6904

0.2756

0.7434

PICARD

MID

18.0010

0.7410

0.7501

0.0091

1.2342

44.2762

0.7789

0.2489

0.8177

MESSIER

MID

18.0210

0.7405

0.7502

0.0097

1.3153

-50.8836

0.7272

-0.0350

0.7280

LANGRENUS

1 C

18.0625

0.7406

0.7683

0.0277

3.7454

-53.6539

0.8558

-0.1560

0.8699

LANGRENUS

2 C

18.0759

0.7405

0.7444

0.0038

0.5192

-54.3430

0.8559

-0.1560

0.8700

BRAYLEY

MID

17.1905

0.7412

0.7534

0.0122

1.6438

37.9598

-0.5774

0.3548

0.6777

MILICHIUS

MID

17.2127

0.7408

0.7618

0.0210

2.8364

41.9264

-0.5140

0.1715

0.5418

MESSIER A

MID

18.0135

0.7405

0.7531

0.0126

1.7026

-50.7581

0.7187

-0.0367

0.7196

 

NUMBER OF OBSERVATIONS 34

MEAN % E FOR TIMINGS 1.8319,

STANDARD DEVIATION 0.6855,

MEAN ERROR 0.118

OBSERVERS 2 & 3: PRICE ROBERT & ELIZABETH Bethanga Victoria Australia

Longitude: 147o 05' 22.8" E Latitude: -36o 07' 10.9" S Elevation: 350 m

Instrument: 11 inch f/10 telescope X 88 Timing: VNG 10 MHz.

NUMBER OF TIMINGS SUBMITTED 73

IMMERSION TIMINGS

FEATURE

TYPE

TIME (UT)

Rc

Ro

Ro - Rc

E %

PSI

(+N/-S)

X

Y

R











FIRST CONTACT

PRIMARY

17.0745

0.7421

0.7595

0.0175

2.3516

39.0814

-0.9692

0.2463

1.0000

SECOND CONTACT

PRIMARY

18.1609

0.7404

0.7519

0.0115

1.5517

-69.1746

0.7216

-0.6923

1.0000

BRIGGS

1 C

17.1017

0.7419

0.7575

0.0157

2.1132

35.1711

-0.8414

0.4438

0.9513

BRIGGS

2 C

17.1035

0.7419

0.7574

0.0155

2.0926

35.2375

-0.8414

0.4438

0.9513

SELEUCUS

1 C

17.1017

0.7417

0.7558

0.0141

1.9037

36.9742

-0.8641

0.3591

0.9358

SELEUCUS

2 C

17.1034

0.7417

0.7562

0.0145

1.9503

37.0432

-0.8641

0.3591

0.9358

RICCIOLI

1 C

17.1100

0.7413

0.7504

0.0091

1.2276

-45.9431

-0.9661

-0.0530

0.9676

RICCIOLI

2 C

17.1115

0.7413

0.7603

0.0190

2.5646

-46.0304

-0.9661

-0.0530

0.9676

REINER

1 C

17.1250

0.7412

0.7576

0.0164

2.2146

41.2644

-0.8194

0.1671

0.8363

REINER

2 C

17.1303

0.7412

0.7584

0.0172

2.3172

41.3281

-0.8194

0.1671

0.8363

GRIMALDI

1 C

17.1143

0.7412

0.7523

0.0111

1.5010

-46.6875

-0.9337

-0.0915

0.9381

GRIMALDI

2 C

17.1338

0.7411

0.7565

0.0154

2.0715

-47.3803

-0.9336

-0.0915

0.9380

ARISTARCHUS

1 C

17.1448

0.7414

0.7578

0.0164

2.2138

36.4863

-0.6902

0.4004

0.7979

ARISTARCHUS

2 C

17.1525

0.7414

0.7563

0.0149

2.0075

36.6329

-0.6901

0.4004

0.7979

MAIRAN

1 C

17.1806

0.7418

0.7595

0.0177

2.3881

31.3163

-0.5259

0.6625

0.8459

MAIRAN

2 C

17.1848

0.7418

0.7580

0.0162

2.1905

31.4379

-0.5258

0.6625

0.8458

CRUGER

1 C

17.1623

0.7408

0.7543

0.0135

1.8214

-51.7731

-0.8881

-0.2883

0.9337

CRUGER

2 C

17.1700

0.7408

0.7552

0.0144

1.9422

-52.0286

-0.8881

-0.2883

0.9337

KEPLER

1 C

17.1835

0.7409

0.7585

0.0176

2.3716

42.3847

-0.6268

0.1389

0.6420

KEPLER

2 C

17.1909

0.7409

0.7575

0.0166

2.2389

42.5589

-0.6268

0.1389

0.6420

BILLY

1 C

17.1942

0.7406

0.7534

0.0128

1.7327

-51.0346

-0.7576

-0.2401

0.7948

BILLY

2 C

17.2004

0.7406

0.7564

0.0158

2.1362

-51.1832

-0.7576

-0.2401

0.7947

LAPLACE

MID

17.2416

0.7417

0.7585

0.0168

2.2644

30.7716

-0.3179

0.7177

0.7850

COPERNICUS

1 C

17.2546

0.7407

0.7584

0.0177

2.3843

42.3784

-0.3568

0.1661

0.3936

COPERNICUS

2 C

17.2714

0.7407

0.7588

0.0181

2.4425

42.8309

-0.3566

0.1661

0.3934

GASSENDI

1 C

17.2334

0.7404

0.7570

0.0167

2.2501

-52.5413

-0.6262

-0.3026

0.6955

GASSENDI

2 C

17.2520

0.7403

0.7589

0.0186

2.5108

-53.2882

-0.6260

-0.3026

0.6953

TIMOCHARIS

1 C

17.2740

0.7411

0.7617

0.0206

2.7794

36.6368

-0.2208

0.4471

0.4986

TIMOCHARIS

2 C

17.2833

0.7411

0.7589

0.0178

2.4011

36.8477

-0.2207

0.4471

0.4985

PLATO

1 C

17.2929

0.7418

0.7554

0.0136

1.8368

29.9334

-0.1125

0.7799

0.7880

PLATO

2 C

17.3055

0.7417

0.7573

0.0156

2.1034

30.1593

-0.1124

0.7799

0.7880

PICO

MID

17.2948

0.7416

0.7591

0.0175

2.3538

31.2795

-0.1229

0.7175

0.7280

ERATOSTHENES

1 C

17.3019

0.7407

0.7522

0.0115

1.5460

41.2496

-0.2093

0.2479

0.3244

ERATOSTHENES

2 C

17.3103

0.7407

0.7545

0.0138

1.8640

41.4667

-0.2092

0.2479

0.3244

ARCHIMEDES

1 C

17.3135

0.7411

0.7576

0.0165

2.2221

36.0454

-0.0783

0.4932

0.4994

ARCHIMEDES

2 C

17.3242

0.7411

0.7598

0.0187

2.5178

36.3049

-0.0782

0.4932

0.4994

PITON

MID

17.3303

0.7414

0.7567

0.0153

2.0632

33.2536

-0.0290

0.6381

0.6388

ARISTILLUS

1 C

17.3345

0.7412

0.7574

0.0162

2.1868

35.0048

0.0007

0.5541

0.5541

ARISTILLUS

2 C

17.3432

0.7412

0.7590

0.0178

2.4010

35.1767

0.0008

0.5541

0.5541

AUTOLYCUS

1 C

17.3418

0.7411

0.7569

0.0158

2.1303

36.0707

0.0037

0.5068

0.5068

AUTOLYCUS

2 C

17.3445

0.7411

0.7589

0.0178

2.4009

36.1751

0.0038

0.5068

0.5068

ARISTOTELES

1 C

17.3744

0.7417

0.7712

0.0295

3.9831

30.9723

0.1787

0.7656

0.7861

ARISTOTELES

2 C

17.3855

0.7417

0.7463

0.0047

0.6285

31.1733

0.1788

0.7656

0.7862

EUDOXUS

1 C

17.3818

0.7415

0.7690

0.0275

3.7051

32.4745

0.1878

0.6953

0.7203

EUDOXUS

2 C

17.3930

0.7415

0.7473

0.0058

0.7830

32.7010

0.1879

0.6953

0.7203

LINNE

MID

17.3907

0.7410

0.7606

0.0196

2.6460

37.4375

0.1627

0.4626

0.4904

MANILIUS

1 C

17.4007

0.7406

0.7621

0.0215

2.9020

42.1671

0.1331

0.2462

0.2799

MANILIUS

2 C

17.4048

0.7406

0.7500

0.0094

1.2656

42.3760

0.1332

0.2462

0.2799

ALPHONSUS

2 C

17.4103

0.7400

0.7436

0.0036

0.4885

-53.2891

-0.0643

-0.2360

0.2446

MENELAUS

1 C

17.4243

0.7407

0.7649

0.0242

3.2686

41.6738

0.2456

0.2766

0.3699

MENELAUS

2 C

17.4341

0.7407

0.7524

0.0117

1.5809

41.9631

0.2458

0.2766

0.3700

HERCULES

1 C

17.4530

0.7417

0.7637

0.0220

2.9656

32.5460

0.4236

0.7264

0.8408

HERCULES

2 C

17.4622

0.7417

0.7456

0.0039

0.5304

32.7109

0.4237

0.7264

0.8409

ATLAS

1 C

17.4705

0.7417

0.7632

0.0215

2.8948

32.7340

0.4717

0.7253

0.8652

ATLAS

2 C

17.4749

0.7417

0.7437

0.0020

0.2672

32.8753

0.4718

0.7253

0.8652

ENDYMION

1 C

17.4647

0.7420

0.7706

0.0286

3.8498

31.0299

0.4888

0.8040

0.9409

CENSORINUS

1 C

17.5632

0.7403

0.7439

0.0036

0.4866

-49.9441

0.5260

-0.0092

0.5261

CENSORINUS

2 C

17.5651

0.7403

0.7410

0.0007

0.0934

-50.0707

0.5260

-0.0092

0.5261

PROCLUS

1 C

17.5622

0.7409

0.7599

0.0189

2.5553

43.1158

0.6904

0.2756

0.7433

PROCLUS

2 C

17.5712

0.7409

0.7491

0.0081

1.0993

43.3806

0.6905

0.2756

0.7434

PICARD

1 C

17.5913

0.7410

0.7598

0.0188

2.5341

43.9645

0.7789

0.2489

0.8177

PICARD

2 C

17.5932

0.7410

0.7542

0.0132

1.7830

44.0678

0.7789

0.2489

0.8177

MESSIER

MID

18.0114

0.7405

0.7578

0.0173

2.3356

-50.5090

0.7271

-0.0350

0.7279

GOCLENIUS

1 C

18.0212

0.7403

0.7615

0.0212

2.8617

-53.8813

0.6852

-0.1755

0.7073

GOCLENIUS

2 C

18.0306

0.7403

0.7465

0.0063

0.8494

-54.2747

0.6852

-0.1755

0.7074

LANGRENUS

1 C

18.0618

0.7406

0.7692

0.0286

3.8681

-53.6040

0.8558

-0.1560

0.8699

LANGRENUS

2 C

18.0809

0.7405

0.7432

0.0027

0.3616

-54.4095

0.8559

-0.1560

0.8700

 

NUMBER OF OBSERVATIONS 67

MEAN % E FOR TIMINGS 2.0619,

STANDARD DEVIATION 0.8407,

MEAN ERROR 0.103

OBSERVER 4: CASTANO JOSE GOMEZ

ADDRESS:C/.Galicia,17-4SSD; E-28942 FUENLABRADA (MADRID) SPAIN

INSTRUMENT: Refractor 60mm; 75X

WEATHER: Excellente. No wind. Temp.:28oC

OBSERVING PLACE: Fuenlabrada (Madrid) Spain

FEATURE SOURCE: "Lunar Map" by Sky & Telescope

NUMBER OF TIMINGS SUBMITTED 39

EMERSION TIMINGS

FEATURE

TYPE

TIME (UT)

Rc

Ro

Ro - Rc

E %

PSI

(+N/-S)

X

Y

R











THIRD CONTACT

PRIMARY

19.1730

0.7423

0.7538

0.0115

1.5497

-33.7480

-0.5240

-0.8517

1.0000

FOURTH CONTACT

PRIMARY

20.2554

0.7432

0.7622

0.0190

2.5553

3.5577

0.8760

0.4822

1.0000

SCHICKARD

3C

19.2141

0.7420

0.7626

0.0206

2.7738

-28.6452

-0.5841

-0.7008

0.9123

CRUGER

3C

19.2524

0.7426

0.7571

0.0145

1.9562

-16.5650

-0.8811

-0.2884

0.9271

MERSENIUS

3C

19.2703

0.7422

0.7522

0.0100

1.3465

-19.5354

-0.7064

-0.3681

0.7966

MARE HUMORUM

3C

19.2728

0.7420

0.7604

0.0184

2.4821

-21.6902

-0.5896

-0.4086

0.7173

GRIMALDI

3 C

19.2753

0.7427

0.7622

0.0195

2.6274

-11.8336

-0.9265

-0.0916

0.9310

GRIMALDI

MID

19.2817

0.7427

0.7548

0.0121

1.6245

-11.6885

-0.9265

-0.0916

0.9310

GRIMALDI

4 C

19.2850

0.7427

0.7487

0.0060

0.8022

-11.4913

-0.9265

-0.0916

0.9310

RICCIOLI

3 C

19.2828

0.7428

0.7650

0.0222

2.9827

-10.5633

-0.9608

-0.0531

0.9623

BILLY

3 C

19.3011

0.7423

0.7597

0.0174

2.3480

-15.6864

-0.7458

-0.2402

0.7835

GASSENDI

3 C

19.3100

0.7421

0.7546

0.0125

1.6837

-18.1506

-0.6126

-0.3027

0.6833

GASSENDI

MID

19.3153

0.7421

0.7549

0.0129

1.7346

-17.7708

-0.6125

-0.3027

0.6832

GASSENDI

4 C

19.3247

0.7421

0.7555

0.0134

1.8104

-17.3910

-0.6124

-0.3027

0.6831

TYCHO

4 C

19.3353

0.7416

0.7576

0.0160

2.1512

-29.2839

-0.1433

-0.6864

0.7013

PITATUS

3 C

19.3711

0.7417

0.7620

0.0203

2.7395

-24.2166

-0.2042

-0.4992

0.5394

ARISTARCHUS

3 C

19.4241

0.7425

0.7573

0.0148

1.9958

1.3172

-0.6769

0.4003

0.7864

REINHOLD

3 C

19.4533

0.7420

0.7629

0.0209

2.8145

9.6531

-0.3875

0.0551

0.3914

COPERNICUS

4 C

19.4857

0.7421

0.7542

0.0121

1.6330

7.2189

-0.3373

0.1660

0.3760

LAMBERT

3 C

19.5138

0.7422

0.7485

0.0062

0.8394

1.7981

-0.3225

0.4330

0.5399

HARPALUS

3 C

19.5450

0.7427

0.7650

0.0223

3.0031

6.4815

-0.4153

0.7943

0.8963

TIMOCHARIS

3 C

19.5535

0.7422

0.7484

0.0063

0.8430

1.6862

-0.2018

0.4470

0.4904

PLATO

3 C

20.0245

0.7425

0.7490

0.0065

0.8786

5.2731

-0.0986

0.7799

0.7861

MENELAUS

3 C

20.0601

0.7421

0.7546

0.0125

1.6827

6.5988

0.2652

0.2765

0.3831

MASKELYNE

3 C

20.0804

0.7420

0.7567

0.0146

1.9714

12.7879

0.5019

0.0343

0.5031

PLINIUS

3 C

20.0906

0.7421

0.7542

0.0121

1.6347

7.2578

0.3886

0.2615

0.4684

LANGRENUS

3 C

20.1252

0.7423

0.7470

0.0047

0.6321

-18.6959

0.8648

-0.1560

0.8788

TARUNTIUS

3 C

20.1409

0.7423

0.7476

0.0054

0.7262

12.3129

0.7243

0.0958

0.7306

MACROBIUS

3 C

20.1724

0.7424

0.7473

0.0048

0.6530

6.0743

0.6732

0.3599

0.7634

ENDYMION

3 C

20.1828

0.7428

0.7446

0.0018

0.2390

4.1094

0.4962

0.8040

0.9448

PICARD

3 C

20.1948

0.7425

0.7595

0.0170

2.2919

8.5604

0.7906

0.2489

0.8289

 

NUMBER OF OBSERVATIONS 31

MEAN % E FOR TIMINGS 1.7744,

STANDARD DEVIATION 0.7853,

MEAN ERROR 0.141,

OBSERVER 5: GARCIA ALBERTO SICILIA Spain

NUMBER OF TIMINGS SUBMITTED 5

EMERSION TIMINGS

FEATURE

TYPE

TIME (UT)

Rc

Ro

Ro - Rc

E %

PSI

(+N/-S)

X

Y

R











GRIMALDI

MID

19.2740

0.7427

0.7496

0.0069

0.9242

-11.9126

-0.9265

-0.0916

0.9311

TYCHO

MID

19.3158

0.7416

0.7503

0.0087

1.1731

-30.3196

-0.1435

-0.6865

0.7013

COPERNICUS

MID

19.4721

0.7421

0.7472

0.0051

0.6898

7.7182

-0.3376

0.1660

0.3762

 

 

NUMBER OF OBSERVATIONS 3

MEAN % E FOR TIMINGS 0.9290,

STANDARD DEVIATION 0.2417,

MEAN ERROR 0.140,

OBSERVER 6: BARONI SANDRO Observatorio Astronomico Milan Ovest Italy

Longitude: 9o 7' 2" E, Latitude 45o 27' 19.1" N, Elevation 138 m

Instrument: Binoculars Zeiss 20/40 X 80 Timing: Radio station HBG 75 KHz Switzerland.

NUMBER OF TIMINGS SUBMITTED 18

EMERSION TIMINGS

FEATURE

TYPE

TIME (UT)

Rc

Ro

Ro - Rc

E %

PSI

(+N/-S)

X

Y

R











GRIMALDI

MID

19.2755

0.7427

0.7517

0.0090

1.20