"Pseudo-MPEC" for OAd1639
Created 2026 Jan 12 8:35:09 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
Astrometry:
OAd1639* C2026 01 09.69728009 46 27.088+18 19 26.50 ~1ACK 20.61rWNEOCPO18
OAd1639 C2026 01 09.69782409 46 27.147+18 19 26.96 ~1ACK 20.49rWNEOCPO18
OAd1639 C2026 01 09.74190909 46 32.651+18 20 07.35 ~1ACK 21.18gWNEOCPO18
OAd1639 C2026 01 09.74245309 46 32.711+18 20 07.93 ~1ACK 20.98gWNEOCPO18
OAd1639 KB2026 01 11.03742009 49 21.28 +18 39 55.5 ~1B1Z 20.0 GVNEOCPL01
OAd1639 KB2026 01 11.03932709 49 21.54 +18 39 58.0 ~1B1Z 20.2 GVNEOCPL01
OAd1639 KB2026 01 11.04123209 49 21.80 +18 40 00.3 ~1B1Z 20.1 GVNEOCPL01
OAd1639 KB2026 01 11.04503809 49 22.27 +18 40 03.2 ~1B1Z 20.2 GVNEOCPL01
OAd1639 1C2026 01 11.14945009 49 35.486+18 41 40.00 ~1B7o 21.3 GXNEOCP033
OAd1639 1C2026 01 11.15023009 49 35.616+18 41 40.80 ~1B7o 21.4 GXNEOCP033
OAd1639 1C2026 01 11.15101009 49 35.706+18 41 41.30 ~1B7o 21.1 GXNEOCP033
OAd1639 |C2026 01 11.25099009 49 49.640+18 43 42.30 ~1B75 20.5 GVNEOCP807
OAd1639 |C2026 01 11.25882509 49 50.640+18 43 49.70 ~1B75 20.7 GVNEOCP807
OAd1639 |C2026 01 11.26666009 49 51.600+18 43 57.40 ~1B75 20.3 GVNEOCP807
OAd1639 KB2026 01 11.41485009 50 10.447+18 45 58.36 ~1BFK 21.0 VZNEOCPW05
OAd1639 KB2026 01 11.43479209 50 12.972+18 46 16.86 ~1BFK 20.6 VZNEOCPW05
OAd1639 KB2026 01 11.45479209 50 15.492+18 46 36.62 ~1BFK 21.2 VZNEOCPW05
OAd1639 KB2026 01 11.90746909 51 17.213+18 53 48.52 ~1BMo 20.32GXNEOCP126
OAd1639 KB2026 01 11.92918709 51 20.060+18 54 10.00 ~1BMo 20.22GXNEOCP126
OAd1639 |C2026 01 12.32853009 52 12.230+19 01 10.10 ~1C8Z 20.6 GVNEOCP807
OAd1639 |C2026 01 12.33376009 52 12.860+19 01 15.30 ~1C8Z 20.5 GVNEOCP807
OAd1639 KC2026 01 12.33379209 52 13.26 +19 00 53.4 ~1C8Z 20.5 GVNEOCPH21
OAd1639 KC2026 01 12.33687209 52 13.63 +19 00 56.5 ~1C8Z 20.4 GVNEOCPH21
OAd1639 |C2026 01 12.33898009 52 13.550+19 01 20.60 ~1C8Z 20.5 GVNEOCP807
OAd1639 KC2026 01 12.34041709 52 14.07 +19 00 59.9 ~1C8Z 20.6 GVNEOCPH21
Station data:
(033) Karl Schwarzschild Observatory, Tautenburg (N50.980139 E11.711240)
Germany. Observer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
(126) Monte Viseggi (N44.132565 E9.790150) Italy.
Observers L. Sannino, A. Mancuso, S. Mercanti, D. Agnetti. Measurers L.
Sannino, A. Mancuso. 0.41-m f/5.3 reflector + CCD.
(807) Cerro Tololo Observatory, La Serena (S30.169133 W70.805900) Chile.
Observer R. Holmes. 0.61-m f/6.5 astrograph + CCD.
(H21) Astronomical Research Observatory, Westfield (N39.483054 W87.968270)
US/Illinois. Observer R. Holmes. Measurers S. Foglia, L. Buzzi, T.
Linder, R. Holmes. 0.40-m f/5.32 astrograph + CCD.
(L01) Višnjan Observatory, Tičan (N45.290897 E13.749300) Croatia.
Observers K. Korlević, L. Poropat. Measurer K. Korlevic. 1.0-m f/2.9
reflector + CCD.
(O18) WFST, Lenghu (N38.607601 E93.895220). Observers K. Yan, Z. Q. Li, J.
Z. Zhu, N. Jiang, Z. Y. Liu. Measurers B. Li, H. B. Zhao, Z. J. Xu, G. T.
Zhaori. 2.5-m f/2.48 reflector + CCD.
(W05) Tree Gate Farm Observatory, Starkville (N33.347635 W88.732810).
Observer J.-F. Gout. 0.5-m f/1.5 reflector + CMOS.
Orbital elements: OAd1639
Perihelion 2026 Mar 10.891804 +/- 0.233 TT = 21:24:11.9 (JD 2461110.391804)
Epoch 2026 Jan 12.0 TT = JDT 2461052.5 Earth MOID: 0.2446 Ju: 0.9057
M 347.244104690 +/- 0.36 Ma: 0.0852 AutoNEOCP
n 0.220340261 +/- 0.00605 Peri. 61.183476 +/- 0.28
a 2.714814392 +/- 0.0497 Node 109.960359 +/- 0.09
e 0.56184909 +/- 0.00722 Incl. 9.072015 +/- 0.07
P 4.47312 H 20.84 G 0.15 U 9.3
q 1.189498373 +/- 0.00279 Q 4.240130410 +/- 0.0971 (J2000 ecliptic)
From 25 observations 2026 Jan. 9-12; mean residual 0".35
Residuals in arcseconds: 260109 O18 .13+ .10- 260111 033 .50+ .30+ 260111 126 .85+ .96- 260109 O18 .00 .14- 260111 033 .37+ .08+ 260112 807 .06+ .25- 260109 O18 .09+ .05- 260111 807 .38- .02- 260112 807 .36- .21- 260109 O18 .01- .03+ 260111 807 .04- .15- 260112 H21 .06+ .43+ 260111 L01 .65- .54- 260111 807 .25- .03+ 260112 H21 .23- .46+ 260111 L01 .35- .15+ 260111 W05 .26- .09+ 260112 807 .09+ .05- 260111 L01 .05- .64+ 260111 W05 .04+ .20- 260112 H21 .36- .34+ 260111 L01 .16- .06- 260111 W05 .01+ .77+ 260111 033 .06+ .23+ 260111 126 .35+ .69- Ephemerides (geocentric): Date (UTC) HH RA Dec delta r elong mag " sig PA ---- -------- ------------ ------------ ------ ------ ----- --- -------- 2026 01 12 09 09 52 18.684 +19 01 41.12 .42637 1.3628 147.6 20.7 .056 137 2026 01 12 10 09 52 24.263 +19 02 22.61 .42605 1.3626 147.6 20.7 .062 136 2026 01 12 11 09 52 29.845 +19 03 04.16 .42574 1.3623 147.6 20.7 .069 135 2026 01 12 12 09 52 35.430 +19 03 45.78 .42542 1.3621 147.7 20.7 .076 134 2026 01 12 13 09 52 41.018 +19 04 27.47 .42511 1.3619 147.7 20.7 .083 133 2026 01 12 14 09 52 46.609 +19 05 09.22 .42479 1.3617 147.7 20.7 .091 132 2026 01 12 15 09 52 52.204 +19 05 51.04 .42448 1.3614 147.7 20.7 .099 132 2026 01 12 16 09 52 57.801 +19 06 32.93 .42416 1.3612 147.7 20.7 .107 131 2026 01 12 17 09 53 03.401 +19 07 14.89 .42385 1.3610 147.8 20.7 .115 131 2026 01 12 18 09 53 09.005 +19 07 56.91 .42354 1.3608 147.8 20.7 .124 130 2026 01 12 19 09 53 14.611 +19 08 39.01 .42322 1.3605 147.8 20.7 .133 130 2026 01 12 20 09 53 20.221 +19 09 21.17 .42291 1.3603 147.8 20.7 .142 129 2026 01 12 21 09 53 25.833 +19 10 03.40 .42260 1.3601 147.9 20.7 .152 129 2026 01 12 22 09 53 31.449 +19 10 45.69 .42228 1.3599 147.9 20.7 .161 129 2026 01 12 23 09 53 37.068 +19 11 28.06 .42197 1.3596 147.9 20.7 .172 129 2026 01 13 00 09 53 42.690 +19 12 10.49 .42166 1.3594 147.9 20.7 .182 128 2026 01 13 01 09 53 48.314 +19 12 52.99 .42135 1.3592 147.9 20.7 .192 128 2026 01 13 02 09 53 53.943 +19 13 35.56 .42104 1.3590 148.0 20.7 .203 128 2026 01 13 03 09 53 59.574 +19 14 18.19 .42072 1.3587 148.0 20.7 .215 128 2026 01 13 04 09 54 05.208 +19 15 00.89 .42041 1.3585 148.0 20.7 .226 128 2026 01 13 05 09 54 10.845 +19 15 43.67 .42010 1.3583 148.0 20.7 .238 128 2026 01 13 06 09 54 16.486 +19 16 26.51 .41979 1.3581 148.0 20.7 .250 128 2026 01 13 07 09 54 22.129 +19 17 09.41 .41948 1.3578 148.1 20.7 .262 128 2026 01 13 08 09 54 27.776 +19 17 52.39 .41917 1.3576 148.1 20.7 .274 127 2026 01 13 09 09 54 33.426 +19 18 35.43 .41886 1.3574 148.1 20.7 .287 127 2026 01 13 10 09 54 39.079 +19 19 18.54 .41855 1.3572 148.1 20.7 .300 127 2026 01 13 11 09 54 44.735 +19 20 01.72 .41824 1.3569 148.2 20.7 .314 127 2026 01 13 12 09 54 50.394 +19 20 44.97 .41794 1.3567 148.2 20.7 .327 127 2026 01 13 13 09 54 56.057 +19 21 28.29 .41763 1.3565 148.2 20.7 .341 127 2026 01 13 14 09 55 01.723 +19 22 11.67 .41732 1.3563 148.2 20.7 .355 127 2026 01 13 15 09 55 07.391 +19 22 55.12 .41701 1.3561 148.2 20.7 .370 127 2026 01 13 16 09 55 13.063 +19 23 38.64 .41670 1.3558 148.3 20.7 .385 127 2026 01 13 17 09 55 18.739 +19 24 22.23 .41639 1.3556 148.3 20.7 .400 127 2026 01 13 18 09 55 24.417 +19 25 05.89 .41609 1.3554 148.3 20.7 .415 127 2026 01 13 19 09 55 30.098 +19 25 49.61 .41578 1.3552 148.3 20.7 .430 127 2026 01 13 20 09 55 35.783 +19 26 33.41 .41547 1.3549 148.4 20.7 .446 127 2026 01 13 21 09 55 41.471 +19 27 17.27 .41517 1.3547 148.4 20.7 .462 127 2026 01 13 22 09 55 47.162 +19 28 01.20 .41486 1.3545 148.4 20.7 .479 127 2026 01 13 23 09 55 52.857 +19 28 45.20 .41456 1.3543 148.4 20.7 .495 127 2026 01 14 00 09 55 58.554 +19 29 29.26 .41425 1.3541 148.4 20.7 .512 127 2026 01 14 01 09 56 04.255 +19 30 13.40 .41394 1.3538 148.5 20.7 .529 127 2026 01 14 02 09 56 09.959 +19 30 57.60 .41364 1.3536 148.5 20.7 .547 127 2026 01 14 03 09 56 15.667 +19 31 41.87 .41334 1.3534 148.5 20.6 .565 127 2026 01 14 04 09 56 21.377 +19 32 26.21 .41303 1.3532 148.5 20.6 .583 127 2026 01 14 05 09 56 27.091 +19 33 10.62 .41273 1.3530 148.5 20.6 .601 127 2026 01 14 06 09 56 32.808 +19 33 55.10 .41242 1.3527 148.6 20.6 .619 127 2026 01 14 07 09 56 38.529 +19 34 39.64 .41212 1.3525 148.6 20.6 .638 127 2026 01 14 08 09 56 44.252 +19 35 24.26 .41182 1.3523 148.6 20.6 .657 127