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6779 Perrine (1990 DM1)
Classification: Main-belt Asteroid          SPK-ID: 2006779
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080130652222515 3.4104e-08  
a 2.256033835168571 5.7669e-09 au
q 2.012352705386902 7.8474e-08 au
i 1.847339877026837 3.267e-06 deg
node 314.1138710737835 0.00010254 deg
peri 200.0326365134003 0.0001037 deg
M 331.7183285707367 1.6129e-05 deg
tp 2459097.734282005958
(2020-Sep-05.23428201)
5.5576e-05 TDB
period 1237.704129676215
3.39
4.7458e-06
1.299e-08
d
yr
n .2908611124164032 1.1153e-09 deg/d
Q 2.49971496495024 6.3898e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2455  
   data-arc span      17216 days (47.13 yr)  
   first obs. used      1973-03-07  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47067  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:38:24  

Additional Information
 Earth MOID = 1.02251 au 
 Jupiter MOID = 2.48782 au 
 T_jup = 3.615 
[ 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 14.0   n/a MPO347579  
diameter diameter 4.189 km 0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 72.279 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:
[Hills, K. (2018) Minor Planet Bull. 45, 128-129.]
geometric albedo albedo 0.277   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6779 Perrine (1990 DM1)          Discovered 1990-Feb-20 by Vavrova, Z. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1990 DM1 = 1973 EH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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