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(2012 HN1)
Classification: Apollo [NEO]          SPK-ID: 3602687
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .15313373824341 0.00022401  
a 1.025922700109628 6.8531e-05 au
q .8688193218930683 0.00017179 au
i 2.405254876668007 0.0036274 deg
node 194.751358042015 0.0050749 deg
peri 108.7775096929294 0.013619 deg
M 215.0366762849116 0.27484 deg
tp 2459153.336126758163
(2020-Oct-30.83612676)
0.30508 TDB
period 379.5512149064502
1.04
0.038031
0.0001041
d
yr
n .9484885988014315 9.5038e-05 deg/d
Q 1.183026078326189 7.9026e-05 au
  Orbit Determination Parameters
   # obs. used (total)      30  
   data-arc span      6 days  
   first obs. used      2012-04-17  
   last obs. used      2012-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .69031  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:50:04  

Additional Information
 Earth MOID = .0110347 au 
 Jupiter MOID = 3.94465 au 
 T_jup = 5.949 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 27.0   n/a MPO232623  

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1987-Apr-08 21:01 08:21 Earth 0.345507941421946 0.33154478320599 0.359473040305849 15.339590403372 15.3390876584689 2446894.375450348 501.46838850589 697530.853324876 136.553668604041 3.39226920146409 18882.5063658596 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
1988-Apr-20 12:46 1_08:14 Earth 0.0519319916450937 0.0486130088796452 0.0553163080042547 6.6169918566694 6.60923346935519 2447272.032257898 1933.73630607151 190743.07556712 538.723411926597 -28.8175005569773 6537.14274193601 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
1989-Feb-27 18:33 9_11:15 Earth 0.177480364239879 0.170055973174093 0.185431700642955 4.46315753469622 4.45979254624753 2447585.272773704 13634.8934279682 616335.887806499 248.220056801302 51.4490375554389 45609.8531902173 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
1990-Oct-19 05:00 4_16:58 Earth 0.0368066621812656 0.0101738373320255 0.0829806544955724 4.16997146555298 4.15257505349739 2448183.708250417 6778.00424723607 2345400.72627312 133.498957974793 -16.1091771063664 11240.6434056784 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
1991-Nov-02 12:31 1_06:14 Earth 0.237166153319613 0.19198335216885 0.282363058577318 12.1923424754875 12.1914209891385 2448563.021542690 1814.1000795633 2255280.23871915 54.0319997136936 2.39915768667561 19927.7818930873 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2011-Apr-10 22:02 01:28 Earth 0.275266213312388 0.273041073919707 0.277491351637578 13.2450154477647 13.2442846133987 2455662.417896832 88.1318060368194 110955.385550117 46.7323363534117 0.633090424257169 7252.42918211687 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2012-Apr-21 10:45 < 00:01 Earth 0.0133557907887718 0.0133030690452495 0.0134085066259714 5.34213696466871 5.30466092109134 2456038.948161608 0.218766106927486 2591.03548904403 5.13832999400307 0.365856989902815 416.067523522102 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2013-Feb-24 22:00 18:19 Earth 0.177199714469543 0.175938168491075 0.17846413491803 4.50631269367596 4.50297467397997 2456348.416847541 1098.75247006032 72346.87712992 542.328783094979 29.5347320631531 13825.982596091 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2013-Jul-11 05:05 1_07:47 Earth 0.14951205484283 0.148837298968406 0.150187122725249 4.88280528210786 4.87915413657411 2456484.712102447 1907.00606606101 35337.8409277827 327.051134154495 -17.8819754648632 12294.3932756724 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2014-Jan-08 15:01 1_09:04 Earth 0.199185329684143 0.198473780172927 0.199897867340758 4.9571313371372 4.9544320888207 2456666.125513215 1984.31587045475 41839.7725118765 607.864875260026 32.0841990429268 14189.1220691095 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2014-Oct-05 00:24 1_18:00 Earth 0.085011210227869 0.0824881651901539 0.0875446404868083 3.25109849671614 3.24144351657364 2456935.516755464 2520.47455249746 134527.219662741 254.152541314357 -19.4359385193406 14877.0738319977 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2015-Oct-31 13:00 04:05 Earth 0.156264397574792 0.151043445626936 0.161486084832752 9.77299131639294 9.77124644439484 2457327.041395878 244.968540318383 260914.302192001 66.4594409459088 3.88136203380115 15741.3547723867 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2016-Nov-10 04:48 03:33 Earth 0.399303341798438 0.392193364701329 0.406413323594756 17.1274286433469 17.1270390404436 2457702.699897499 212.636002547268 354552.508817995 36.5621753646482 0.599348257537151 13206.2305434746 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2037-Apr-04 23:43 23:37 Earth 0.39849105332527 0.351267710102346 0.445714477826483 16.9800392407839 16.9796454549146 2465153.488416263 1417.28191042773 2354856.32464688 47.5675995095457 0.513816031728724 9208.10069681321 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2038-Apr-15 07:16 1_13:43 Earth 0.157965349461184 0.108272129063045 0.20771542799584 9.77151847147152 9.76979212948931 2465528.802667277 2263.27034356179 2483918.36908121 49.7054376803616 -3.43837447023567 20248.5985309324 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2039-Apr-27 00:51 3_11:58 Earth 0.0839029580984028 0.0345908593107955 0.133813448978699 2.82193098155169 2.81065492473236 2465905.535100553 5037.72443997031 2499424.85425837 76.6579704779229 1.54799371604612 27352.9041176491 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2041-Oct-23 05:17 2_18:48 Earth 0.0114404045289211 0.0109562662555732 0.043361996543198 5.29966346285503 5.25553339107185 2466815.719967242 4007.54601431974 1931509.83286016 106.691821853958 73.4411738900339 12662.7078534992 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
2042-Nov-05 03:08 5_20:22 Earth 0.275359201472908 0.0850195814272555 0.466106488191693 13.3582016514767 13.3574772546423 2467193.630680726 8422.0002478674 9516313.32667608 36.1565142311791 2.39305546065478 33941.5345384192 T 6 CATAB v2.0e-lin.ifort 2017-Nov-29 06:11:19 2018-Dec-11 15:49
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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