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120635 (1996 HE16)
Classification: Main-belt Asteroid          SPK-ID: 2120635
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1904053876387681 4.4691e-08  
a 3.065740468024513 2.337e-08 au
q 2.482006965810447 1.3766e-07 au
i 4.395825530488587 5.0536e-06 deg
node 46.1257847145948 5.561e-05 deg
peri 177.0014083760901 5.6964e-05 deg
M 211.3277871384879 1.5547e-05 deg
tp 2460010.208711210157
(2023-Mar-06.70871121)
9.069e-05 TDB
period 1960.656469862217
5.37
2.2419e-05
6.138e-08
d
yr
n .1836119715685321 2.0995e-09 deg/d
Q 3.649473970238579 2.782e-08 au
  Orbit Determination Parameters
   # obs. used (total)      515  
   data-arc span      9035 days (24.74 yr)  
   first obs. used      1996-04-18  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56181  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:07:27  

Additional Information
 Earth MOID = 1.47219 au 
 Jupiter MOID = 1.32947 au 
 T_jup = 3.200 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.97   n/a MPCxxxxx  
rotation period rot_per 5.03 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

120635 (1996 HE16)          Discovered 1996-Apr-18 by Elst, E. W. at La Silla
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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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
1928-Dec-09 03:01 00:04 Jupiter 1.33303557588961 1.33303476673852 1.33303638510775 1.03996199909546 n/a 2425589.625556766 3.90781629064809 613.513570584343 25.7413265100662 87.0942465596924 7734319.22640559 F 21 CATAB v2.0f-lin.ifort 2021-Apr-13 17:07:28 2021-Apr-13 17:07
1988-Jan-12 12:04 00:01 Jupiter 1.33102463979733 1.33102417711283 1.3310251025564 1.05135442971437 n/a 2447173.003088795 1.14028109345124 728.00220890098 16.8590581974257 88.7596971117177 11803750.9674145 F 21 CATAB v2.0f-lin.ifort 2021-Apr-13 17:07:28 2021-Apr-13 17:07
2037-Aug-12 17:36 < 00:01 Jupiter 1.93285027099032 1.93284964324236 1.93285089873817 2.40935792121568 2.22003522925956 2465283.233132449 0.834232575329221 55.5445880885977 9.5248555740354 -77.614798943575 2262839.52554946 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 17:07:28 2021-Apr-13 17:07
2047-Jan-31 06:11 00:01 Jupiter 1.36970374076642 1.36970309413275 1.36970438745769 1.10640479845465 n/a 2468741.757558820 1.24295232888246 602.029045718148 21.8013437686427 87.7366676217454 9388110.35971875 F 21 CATAB v2.0f-lin.ifort 2021-Apr-13 17:07:28 2021-Apr-13 17:07
2096-Jul-25 01:45 00:03 Jupiter 1.75922815341313 1.75922568424058 1.75923062258278 1.73159199395646 1.42669651737315 2486814.572598331 3.41969879438737 223.402715474731 57.0270174453815 58.5458693167905 1219627.43971745 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 17:07:28 2021-Apr-13 17:07
2106-Jan-07 05:42 00:04 Jupiter 1.47964534297896 1.47964311560113 1.47964757082973 1.3035594471702 0.744558836798875 2490266.737497078 3.79953399297499 2185.83946202629 500.675032955016 61.0275826971047 1379614.04952446 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 17:07:28 2021-Apr-13 17:07
2155-May-27 15:43 00:05 Jupiter 1.5570079740918 1.55700449234597 1.55701145613032 1.15907121442477 0.505403811273696 2508304.154970951 5.43475051708357 5208.40701064424 637.626722075406 22.5299619265754 1301890.74471179 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 17:07:28 2021-Apr-13 17:07
2164-Nov-06 07:31 00:06 Jupiter 1.66889655624686 1.6688924603298 1.66890065227577 1.84920745124027 1.55064479469969 2511754.812857359 5.63691793350436 834.103246018027 40.9315581822303 81.4374979455021 2360252.88429712 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 17:07:28 2021-Apr-13 17:07

Alternate Designations
 1996 HE16 = 2001 ES8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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