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2000 Herschel (1960 OA)
Classification: Main-belt Asteroid          SPK-ID: 2002000
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2980481654837821 3.4235e-08  
a 2.379945676319827 7.017e-09 au
q 1.670607233541644 8.3092e-08 au
i 22.81986373184725 4.5409e-06 deg
node 291.923182986139 1.2106e-05 deg
peri 130.501677739895 1.5503e-05 deg
M 41.09268547542088 7.6289e-06 deg
tp 2458847.422621434327
(2019-Dec-29.92262143)
2.848e-05 TDB
period 1341.062421354872
3.67
5.9309e-06
1.624e-08
d
yr
n .2684438802157269 1.1872e-09 deg/d
Q 3.089284119098011 9.1084e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2091  
   data-arc span      31331 days (85.78 yr)  
   first obs. used      1934-07-12  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34284  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:33:33  

Additional Information
 Earth MOID = .7521 au 
 Jupiter MOID = 2.36477 au 
 T_jup = 3.376 
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Orbital Elements at Epoch 2456677.5 (2014-Jan-20.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2974449069229677 3.4134e-08  
q 1.67223778262377 8.2716e-08 au
tp 2456163.378764127038
(2012-Aug-23.87876413)
3.2113e-05 TDB
node 292.0636362432348 1.2111e-05 deg
peri 130.1861955759799 1.5541e-05 deg
i 22.79751914491555 4.5423e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2091  
   data-arc span      31331 days (85.78 yr)  
   first obs. used      1934-07-12  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34284  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:33:33  

Additional Information
 Jupiter MOID = 2.36477 au 
 T_jup = 3.376 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.165113226595701E-15 -2.818956747731594E-15 -5.102791379132125E-14 -9.173839714106903E-15 8.363912104864443E-16 -1.057451355306192E-14
q -2.818956747731594E-15 6.842007865736098E-15 5.273177384298109E-14 2.346858085944133E-14 -2.251021390226221E-14 2.569824955464358E-14
tp -5.102791379132125E-14 5.273177384298109E-14 1.031224428809446E-9 1.393862874884393E-12 3.318814729135139E-10 7.553939125261286E-12
node -9.173839714106903E-15 2.346858085944133E-14 1.393862874884393E-12 1.466738884484495E-10 -1.34099224759699E-10 1.44900061329795E-11
peri 8.363912104864443E-16 -2.251021390226221E-14 3.318814729135139E-10 -1.34099224759699E-10 2.41527049056829E-10 -1.102877340115759E-11
i -1.057451355306192E-14 2.569824955464358E-14 7.553939125261286E-12 1.44900061329795E-11 -1.102877340115759E-11 2.063293163972338E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.2   n/a MPO502172  
diameter diameter 14.768 km 0.348 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 130. h n/a LCDB (Rev. 2019-August); 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:
[Warner, B.D. (2011) Minor Planet Bull. 38, 96-101.]
geometric albedo albedo 0.277   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.893   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=21.55, mean=24.12, max.=26.77) deg.
U-B UB 0.494   0.071 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=21.55, mean=23.24, max.=26.57) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

2000 Herschel (1960 OA)          Discovered 1960-Jul-29 by Schubart, J. at Sonneberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1960 OA = 1934 NX 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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