"Pseudo-MPEC" for P21D8H4

Created 2023 Jan 26 17:22:15 UT using Find_Orb

Click here for an explanation of pseudo-MPECs

 
 Astrometry: 
     P21D8H4* C2023 01 22VWx;m9FM4bwn*pU1Gjh0BeMnH:o7HKn)#c)q#)DkEu9OEn;l_)[HF52
     P21D8H4* C2023 01 22*Oqxy.FJ#O(@3yCpwipr(y=w:/\Ce=lIG=GFKnJ(wRId+F[(5QPqF52
     P21D8H4  C2023 01 22oEZQBHhII+qIWet9b'2cnxGIpQ@evUp?U?-$B9ulJ:@c1F82i.'AF52
     P21D8H4  C2023 01 22U*8,JW]YN4GcmiVB57UDHVJ:BAstrometry9H#4W-L=2^k2VYtMPF52
     P21D8H4  C2023 01 22o8W`G!.#%Fredacted;r$#,[13SCq-4)dn^Ahk0EQX:5%p5wu9^0F52
     P21D8H4  C2023 01 22$qcGhq[K5*As%_;pJa\;pKufaLaT0LX[5%#,:NAxon$/0N3K*of@F52
     P21D8H4  C2023 01 22aA[h\5x.GZDL]*AfL?5tCD^L1/VP1!kR\YhL2wsclickluF)%AI+F52
     P21D8H4  C2023 01 22`_Z^]doN@OXQPI]3]L9o#2;RXxWSH=nawRDomC6CUBM%%:b+S1bfF52
     P21D8H4  C2023 01 22L:xJLRLiF3@R25H%3^hPG`jcEDt.dHb%N:Qq:?7lQ':0nSg\3q^MF52
     P21D8H4  C2023 01 22aGs_v'Iv)f!X-)uLAgW\gpi.,%D*Al#ZB^here*rAJtS*[]%-XGdF52
     P21D8H4  C2023 01 22Z)+*rnjNs52:[5ufor#MYuo)IHg*+mk=:/wwo[IcLw6adQvyyM9NF52
     P21D8H4  C2023 01 22vvRxc6^V\!JkyG:4pW`Hn!2ywe%P8r%hn1gWGK4)L^O%`i:VGT$oF52
     P21D8H4  C2023 01 22Vjn-VM^HE=79NXJu)^Y/w.i7Q]mRkLGGpo/LBmuA0f48D_g'wFjNF52
     P21D8H4 3C2023 01 24.3e`p3lb9:explanationc/cr\`?1'OwpAuU/V,U[4X^gJFdd6N6T14
     P21D8H4 3C2023 01 24r4V)o_Ze'/t6e[EepcSpA8^l8d0VT8mLI/vbC;iRj%qK%7Ahjkd(T14
     P21D8H4 3C2023 01 24)VuH@QYD)9G8i06+yhOY:T8QOAtD$$TSu*(.)1GP$7::vn\%'vY?T14
     P21D8H4 KC2023 01 26.40887 10 10 48.98 +10 22 11.4    ~1QCb       VNEOCP691
     P21D8H4 KC2023 01 26.42834 10 10 48.57 +10 21 37.2    ~1QCb       VNEOCP691

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.
(F52) Pan-STARRS 2, Haleakala  (N20.707382 W156.255910)  US/Hawaii.
   Observers J. Bulger, T. Dukes, T. Lowe, A. Schultz, M. Willman. Measurers
   K. Chambers, S. Chastel, T. de Boer, L. Denneau, J. Fairlamb, H.
   Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat,
   R. Weryk. 1.8-m Ritchey-Chrétien + CCD.
(T14) Mauna Kea-UH/Tholen NEO Follow-Up (CFHT)  (N19.825252 W155.468876)
   US/Hawaii. 3.6-m Canada-France-Hawaii Telescope.

Orbital elements:  P21D8H4
   Perihelion 2023 Apr 3.91790 +/- 0.0754 TT = 22:01:46 (JD 2460038.41790)
Epoch 2023 Jan 26.0 TT = JDT 2459970.5   Earth MOID: 0.2980   Ma: 0.0721
M 341.90769714 +/- 0.16             (J2000 ecliptic)             AutoNEOCP
n   0.26638489 +/- 0.00246          Peri.  235.11663 +/- 0.08
a   2.39219358 +/- 0.0147           Node   312.69710 +/- 0.023
e   0.4868399 +/- 0.0028            Incl.   13.35780 +/- 0.052
P   3.70                   H 21.52  G  0.15   U  8.7
q 1.22757810 +/- 0.0011    Q 3.55680907 +/- 0.0286
From 18 observations 2023 Jan. 22-26; mean residual 0".11
Residuals in arcseconds: 
230122 F52  .05+  .07-    230122 F52  .05+  .05+    230122 F52  .00   .04+    
230122 F52  .12+  .04+    230122 F52  .28-  .03+    230124 T14  .01+  .04+    
230122 F52  .11+  .06+    230122 F52  .09+  .00     230124 T14  .00   .02-    
230122 F52  .05+  .08+    230122 F52  .07+  .05-    230124 T14  .01-  .02-    
230122 F52  .31-  .31-    230122 F52  .08+  .09-    230126 691  .08-  .02-    
230122 F52  .04-  .20+    230122 F52  .01-  .04+    230126 691  .07+  .02+    

Ephemerides (geocentric):
Date (UTC) HH   RA             Dec           delta  r     elong  mag " sig PA
---- --------  ------------   ------------  ------ ------ -----  --- --------
2023 01 26 17  10 10 44.565   +10 13 31.12  .46207 1.4173 155.1 21.5 .211 104
2023 01 26 18  10 10 43.909   +10 12 17.45  .46176 1.4171 155.2 21.5 .220 104
2023 01 26 19  10 10 43.248   +10 11 03.70  .46145 1.4169 155.2 21.5 .228 104
2023 01 26 20  10 10 42.582   +10 09 49.89  .46113 1.4166 155.3 21.5 .237 103
2023 01 26 21  10 10 41.911   +10 08 35.99  .46082 1.4164 155.3 21.5 .246 103
2023 01 26 22  10 10 41.236   +10 07 22.02  .46051 1.4162 155.3 21.5 .255 103
2023 01 26 23  10 10 40.555   +10 06 07.98  .46020 1.4160 155.4 21.5 .264 103
2023 01 27 00  10 10 39.870   +10 04 53.86  .45989 1.4158 155.4 21.5 .273 103
2023 01 27 01  10 10 39.180   +10 03 39.67  .45958 1.4156 155.4 21.5 .283 103
2023 01 27 02  10 10 38.485   +10 02 25.40  .45927 1.4154 155.5 21.5 .292 103
2023 01 27 03  10 10 37.785   +10 01 11.06  .45896 1.4152 155.5 21.5 .302 102
2023 01 27 04  10 10 37.080   +09 59 56.64  .45865 1.4150 155.6 21.5 .312 102
2023 01 27 05  10 10 36.370   +09 58 42.15  .45834 1.4148 155.6 21.5 .322 102
2023 01 27 06  10 10 35.656   +09 57 27.58  .45803 1.4146 155.6 21.5 .332 102
2023 01 27 07  10 10 34.936   +09 56 12.93  .45772 1.4144 155.7 21.5 .342 102
2023 01 27 08  10 10 34.212   +09 54 58.21  .45741 1.4142 155.7 21.5 .353 102
2023 01 27 09  10 10 33.483   +09 53 43.42  .45710 1.4139 155.7 21.5 .363 102
2023 01 27 10  10 10 32.749   +09 52 28.55  .45679 1.4137 155.8 21.5 .374 102
2023 01 27 11  10 10 32.010   +09 51 13.61  .45648 1.4135 155.8 21.5 .385 102
2023 01 27 12  10 10 31.266   +09 49 58.58  .45618 1.4133 155.8 21.5 .396 102
2023 01 27 13  10 10 30.517   +09 48 43.49  .45587 1.4131 155.9 21.5 .407 102
2023 01 27 14  10 10 29.764   +09 47 28.32  .45556 1.4129 155.9 21.5 .418 102
2023 01 27 15  10 10 29.006   +09 46 13.07  .45525 1.4127 156.0 21.5 .429 101
2023 01 27 16  10 10 28.242   +09 44 57.75  .45495 1.4125 156.0 21.5 .441 101
2023 01 27 17  10 10 27.474   +09 43 42.35  .45464 1.4123 156.0 21.5 .453 101
2023 01 27 18  10 10 26.701   +09 42 26.87  .45434 1.4121 156.1 21.5 .464 101
2023 01 27 19  10 10 25.924   +09 41 11.32  .45403 1.4119 156.1 21.5 .476 101
2023 01 27 20  10 10 25.141   +09 39 55.70  .45373 1.4117 156.1 21.5 .488 101
2023 01 27 21  10 10 24.353   +09 38 39.99  .45342 1.4115 156.2 21.5 .501 101
2023 01 27 22  10 10 23.561   +09 37 24.21  .45312 1.4113 156.2 21.5 .513 101
2023 01 27 23  10 10 22.764   +09 36 08.36  .45281 1.4111 156.2 21.5 .526 101
2023 01 28 00  10 10 21.962   +09 34 52.43  .45251 1.4108 156.3 21.5 .538 101
2023 01 28 01  10 10 21.155   +09 33 36.42  .45220 1.4106 156.3 21.5 .551 101
2023 01 28 02  10 10 20.343   +09 32 20.34  .45190 1.4104 156.4 21.5 .564 101
2023 01 28 03  10 10 19.526   +09 31 04.18  .45160 1.4102 156.4 21.5 .577 101
2023 01 28 04  10 10 18.705   +09 29 47.95  .45129 1.4100 156.4 21.5 .590 101
2023 01 28 05  10 10 17.878   +09 28 31.63  .45099 1.4098 156.5 21.5 .603 101
2023 01 28 06  10 10 17.047   +09 27 15.25  .45069 1.4096 156.5 21.5 .617 101
2023 01 28 07  10 10 16.211   +09 25 58.78  .45039 1.4094 156.5 21.5 .631 101
2023 01 28 08  10 10 15.370   +09 24 42.24  .45009 1.4092 156.6 21.5 .644 101
2023 01 28 09  10 10 14.524   +09 23 25.63  .44978 1.4090 156.6 21.4 .658 101
2023 01 28 10  10 10 13.674   +09 22 08.93  .44948 1.4088 156.7 21.4 .672 101
2023 01 28 11  10 10 12.818   +09 20 52.16  .44918 1.4086 156.7 21.4 .686 101
2023 01 28 12  10 10 11.958   +09 19 35.31  .44888 1.4084 156.7 21.4 .701 101
2023 01 28 13  10 10 11.093   +09 18 18.39  .44858 1.4082 156.8 21.4 .715 101
2023 01 28 14  10 10 10.223   +09 17 01.39  .44828 1.4080 156.8 21.4 .730 101
2023 01 28 15  10 10 09.348   +09 15 44.31  .44798 1.4078 156.8 21.4 .744 101
2023 01 28 16  10 10 08.468   +09 14 27.16  .44768 1.4076 156.9 21.4 .759 101