"Pseudo-MPEC" for SW40zJ

Created 2021 Jan 21 11:07:23 UT using Find_Orb

Click here for an explanation of pseudo-MPECs

 
 Astrometry: 
     SW40zJ   C2021 01 06.24760 04 42 59.08 -02 14 12.4    ~168b 18.6 VoNEOCP691
     SW40zJ   C2021 01 06.26203 04 42 58.22 -02 14 10.9    ~168b 19.0 VoNEOCP691
     SW40zJ   C2021 01 06.27648 04 42 57.54 -02 14 11.1    ~168b 19.0 VoNEOCP691

Station data:
(691) Steward Observatory, Kitt Peak - Spacewatch  (N31.962174 W111.600327)
   US/Arizona.  Observer J. V. Scotti. 0.9-m f/3 reflector + CCD.

Orbital elements:  SW40zJ
   Perihelion 2021 May 18.516437 +/- 404.779 TT = 12:23:40 (JD 2459353.016437)
Epoch 2021 Jan  6.0 TT = JDT 2459220.5   Earth MOID: 0.3400   AutoNEOCP
M 328.49701017 +/- 86.113457        (J2000 ecliptic)
n   0.23772892 +/- 0.245196         Peri.  336.96871 +/- 46.691559
a   2.58076247 +/- 1.77451          Node   193.37358 +/- 47.161361
e   0.4868076 +/- 0.247888          Incl.   13.33690 +/- 55.791609
P   4.15                   H 16.5   G  0.15   U 11.8  SR
q 1.32442745 +/- 1.34641    Q 3.83709748 +/- 34.3149
From 3 observations 2021 Jan. 6 (41.6 min); mean residual 0".53
Residuals in arcseconds: 
210106 691  .45+  .28-    210106 691  .90-  .57+    210106 691  .45+  .28-    

Ephemerides (geocentric):
Date (UTC) HH   RA              Dec         delta   r     elong  mag " sig PA
---- -- -- --  -------------   -----------  ------ ------ -----  --- ---- ---
2021 01 21 11  04 34 38.326   -01 23 04.43  1.0193 1.7536 122.2 19.1 4005 168
2021 01 21 12  04 34 37.758   -01 22 50.09  1.0194 1.7534 122.1 19.1 4019 168
2021 01 21 13  04 34 37.195   -01 22 35.73  1.0195 1.7531 122.1 19.1 4034 168
2021 01 21 14  04 34 36.637   -01 22 21.34  1.0196 1.7529 122.0 19.1 4049 168
2021 01 21 15  04 34 36.083   -01 22 06.91  1.0196 1.7526 122.0 19.1 4064 168
2021 01 21 16  04 34 35.534   -01 21 52.46  1.0197 1.7524 122.0 19.1 4079 168
2021 01 21 17  04 34 34.989   -01 21 37.99  1.0198 1.7522 121.9 19.1 4094 168
2021 01 21 18  04 34 34.450   -01 21 23.48  1.0199 1.7519 121.9 19.1 4109 168
2021 01 21 19  04 34 33.914   -01 21 08.94  1.0200 1.7517 121.9 19.1 4124 168
2021 01 21 20  04 34 33.384   -01 20 54.38  1.0201 1.7514 121.8 19.1 4139 168
2021 01 21 21  04 34 32.858   -01 20 39.79  1.0202 1.7512 121.8 19.1 4153 168
2021 01 21 22  04 34 32.337   -01 20 25.17  1.0203 1.7510 121.7 19.1 4168 168
2021 01 21 23  04 34 31.821   -01 20 10.52  1.0204 1.7507 121.7 19.1 4184 168
2021 01 22 00  04 34 31.309   -01 19 55.84  1.0205 1.7505 121.7 19.1 4199 168
2021 01 22 01  04 34 30.802   -01 19 41.14  1.0205 1.7502 121.6 19.1 4214 168
2021 01 22 02  04 34 30.299   -01 19 26.41  1.0206 1.7500 121.6 19.1 4229 168
2021 01 22 03  04 34 29.801   -01 19 11.65  1.0207 1.7498 121.5 19.1 4244 168
2021 01 22 04  04 34 29.308   -01 18 56.86  1.0208 1.7495 121.5 19.1 4259 168
2021 01 22 05  04 34 28.820   -01 18 42.04  1.0209 1.7493 121.5 19.1 4274 168
2021 01 22 06  04 34 28.336   -01 18 27.20  1.0210 1.7490 121.4 19.1 4289 168
2021 01 22 07  04 34 27.857   -01 18 12.32  1.0211 1.7488 121.4 19.1 4304 168
2021 01 22 08  04 34 27.382   -01 17 57.42  1.0212 1.7486 121.4 19.1 4320 168
2021 01 22 09  04 34 26.913   -01 17 42.49  1.0213 1.7483 121.3 19.1 4335 168
2021 01 22 10  04 34 26.448   -01 17 27.54  1.0214 1.7481 121.3 19.1 4350 168
2021 01 22 11  04 34 25.987   -01 17 12.55  1.0215 1.7478 121.2 19.1 4365 168
2021 01 22 12  04 34 25.531   -01 16 57.54  1.0215 1.7476 121.2 19.1 4381 168
2021 01 22 13  04 34 25.080   -01 16 42.50  1.0216 1.7474 121.2 19.1 4396 168
2021 01 22 14  04 34 24.634   -01 16 27.44  1.0217 1.7471 121.1 19.1 4411 168
2021 01 22 15  04 34 24.192   -01 16 12.34  1.0218 1.7469 121.1 19.1 4427 168
2021 01 22 16  04 34 23.755   -01 15 57.22  1.0219 1.7466 121.1 19.1 4442 168
2021 01 22 17  04 34 23.323   -01 15 42.07  1.0220 1.7464 121.0 19.1 4458 167
2021 01 22 18  04 34 22.895   -01 15 26.89  1.0221 1.7462 121.0 19.1 4473 167
2021 01 22 19  04 34 22.472   -01 15 11.69  1.0222 1.7459 120.9 19.1 4489 167
2021 01 22 20  04 34 22.054   -01 14 56.46  1.0223 1.7457 120.9 19.1 4504 167
2021 01 22 21  04 34 21.641   -01 14 41.20  1.0224 1.7454 120.9 19.1 4519 167
2021 01 22 22  04 34 21.232   -01 14 25.91  1.0225 1.7452 120.8 19.1 4535 167
2021 01 22 23  04 34 20.827   -01 14 10.59  1.0226 1.7450 120.8 19.1 4551 167
2021 01 23 00  04 34 20.428   -01 13 55.25  1.0227 1.7447 120.8 19.1 4566 167
2021 01 23 01  04 34 20.033   -01 13 39.88  1.0228 1.7445 120.7 19.1 4582 167
2021 01 23 02  04 34 19.643   -01 13 24.49  1.0228 1.7442 120.7 19.1 4597 167
2021 01 23 03  04 34 19.257   -01 13 09.06  1.0229 1.7440 120.6 19.1 4613 167
2021 01 23 04  04 34 18.877   -01 12 53.61  1.0230 1.7438 120.6 19.1 4629 167
2021 01 23 05  04 34 18.501   -01 12 38.13  1.0231 1.7435 120.6 19.1 4644 167
2021 01 23 06  04 34 18.129   -01 12 22.63  1.0232 1.7433 120.5 19.1 4660 167
2021 01 23 07  04 34 17.763   -01 12 07.10  1.0233 1.7430 120.5 19.1 4676 167
2021 01 23 08  04 34 17.401   -01 11 51.54  1.0234 1.7428 120.5 19.1 4691 167
2021 01 23 09  04 34 17.043   -01 11 35.95  1.0235 1.7426 120.4 19.1 4707 167
2021 01 23 10  04 34 16.691   -01 11 20.34  1.0236 1.7423 120.4 19.1 4723 167