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2309 Mr. Spock (1971 QX1)
Classification: Main-belt Asteroid          SPK-ID: 2002309
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 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09265620418012148 1.8723e-08  
a 3.012739469766659 1.2256e-08 au
q 2.733590466314448 5.5528e-08 au
i 10.97915890097726 4.0895e-07 deg
node 157.186484189039 4.6198e-06 deg
peri 271.9585808049681 1.4321e-05 deg
M 52.54537018109787 1.1372e-05 deg
tp 2458921.712852782126
(2020-Mar-13.21285278)
5.9953e-05 TDB
period 1910.032656588617
5.23
1.1656e-05
3.191e-08
d
yr
n .1884784528464409 1.1502e-09 deg/d
Q 3.29188847321887 1.3392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3141  
   data-arc span      23533 days (64.43 yr)  
   first obs. used      1956-10-09  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40143  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:37:20  

Additional Information
 Earth MOID = 1.77523 au 
 Jupiter MOID = 1.98334 au 
 T_jup = 3.215 
[ 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 11.46   n/a E2021B10  
diameter diameter 19.707 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.722 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.144   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2309 Mr. Spock (1971 QX1)          Discovered 1971-Aug-16 by Gibson, J. at El Leoncito
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1971 QX1 = 1935 SN1 = 1948 EJ1 = 1956 TL = 1974 CU = 1977 SF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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