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JPL Small-Body Database Browser
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1129 Neujmina (1929 PH)
Classification: Main-belt Asteroid          SPK-ID: 2001129
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08331464430994101 4.1659e-08  
a 3.022826280267701 1.2769e-08 au
q 2.770980583916455 1.282e-07 au
i 8.619586632557818 4.3687e-06 deg
node 269.2181263159629 2.9142e-05 deg
peri 139.7256242006905 3.9225e-05 deg
M 32.62152098421832 2.5e-05 deg
tp 2458826.551809129338
(2019-Dec-09.05180913)
0.00013336 TDB
period 1919.633015999875
5.26
1.2163e-05
3.33e-08
d
yr
n .1875358451326112 1.1882e-09 deg/d
Q 3.274671976618947 1.3832e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2734  
   data-arc span      34359 days (94.07 yr)  
   first obs. used      1926-01-10  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41108  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:46:21  

Additional Information
 Earth MOID = 1.78872 au 
 Jupiter MOID = 2.04096 au 
 T_jup = 3.223 
[ 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 10.20   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
diameter diameter 34.576 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.0844 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Carbo, L.; Kragh, K.; Krotz, J.; Meiers, A.; et al. (2009) Minor Planet Bull. 36, 91-94.]
[Ditteon, R.; West, J. (2011) Minor Planet Bull. 38, 214-217.]
geometric albedo albedo 0.138   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.780   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.11 deg.
U-B UB 0.410   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.11 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

1129 Neujmina (1929 PH)          Discovered 1929-Aug-08 by Parchomenko, P. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1929 PH = 1926 AE = A914 WE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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