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1271 Isergina (1931 TN)
Classification: Main-belt Asteroid          SPK-ID: 2001271
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1206826325390487 9.1023e-09  
a 3.14016442608331 1.1428e-08 au
q 2.761201116538106 2.6379e-08 au
i 6.683332669713588 5.1728e-07 deg
node 126.8421820515861 4.3144e-06 deg
peri 271.9005697663517 1.242e-05 deg
M 45.47443924158082 9.1461e-06 deg
tp 2459139.760989874204
(2020-Oct-17.26098987)
5.1755e-05 TDB
period 2032.483416766888
5.56
1.1095e-05
3.038e-08
d
yr
n .1771232163717523 9.6691e-10 deg/d
Q 3.519127735628515 1.2807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3624  
   data-arc span      42006 days (115.01 yr)  
   first obs. used      1906-04-17  
   last obs. used      2021-04-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39374  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:10:54  

Additional Information
 Earth MOID = 1.77871 au 
 Jupiter MOID = 1.91946 au 
 T_jup = 3.189 
[ 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 10.42   n/a E2021B10  
diameter diameter 47.524 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 7.59932 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Aznar, A.M.; Carreno Garcerain, A.; Arce Masego, E.; Brines Rodriques, P.; et al. (2016) Minor Planet Bull. 43, 257-263.]
[Benishek, V. (2016) Minor Planet Bull. 43, 339-342.]
geometric albedo albedo 0.031   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B C   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)

1271 Isergina (1931 TN)          Discovered 1931-Oct-10 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1931 TN = 1930 MK = 1932 CK1 = 2003 RV22 = 2019 GW35 = A906 HD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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