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2087 Kochera (1975 YC)
Classification: Main-belt Asteroid          SPK-ID: 2002087
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05728763729234456 1.6785e-08  
a 2.206028361866291 5.3618e-09 au
q 2.07965020921507 3.7123e-08 au
i 1.828664938268469 3.7731e-07 deg
node 95.6254207181028 1.0662e-05 deg
peri 320.0330630607398 1.4326e-05 deg
M 291.023481131229 1.1149e-05 deg
tp 2459429.805164426226
(2021-Aug-03.30516443)
3.7395e-05 TDB
period 1196.782043328305
3.28
4.3632e-06
1.195e-08
d
yr
n .300806652311413 1.0967e-09 deg/d
Q 2.332406514517511 5.669e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3140  
   data-arc span      28559 days (78.19 yr)  
   first obs. used      1942-11-05  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42452  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:19:40  

Additional Information
 Earth MOID = 1.09059 au 
 Jupiter MOID = 2.82108 au 
 T_jup = 3.658 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.21   n/a MPCxxxxx  
diameter diameter 6.569 km 1.475 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 6.109 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Black, S.; Linville, D.; Michalik, D.; Wolf, M.; Ditteon, R. (2016) Minor Planet Bull. 43, 287-289.]
geometric albedo albedo 0.284   0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2087 Kochera (1975 YC)          Discovered 1975-Dec-28 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1975 YC = 1942 VF = 1955 SD1 = 1970 FJ = 1973 AN4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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