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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1078981903974262 1.4794e-08  
a 2.255762017994499 5.4777e-09 au
q 2.012369378285646 3.3828e-08 au
i 1.847331019654786 6.5894e-07 deg
node 314.1139874993057 2.4332e-05 deg
peri 199.9993908855658 2.4444e-05 deg
M 29.92229520766813 9.4967e-06 deg
tp 2459097.643735160918
(2020-Sep-05.14373516)
3.2468e-05 TDB
period 1237.480450115349
3.39
4.5075e-06
1.234e-08
d
yr
n .2909136867305204 1.0596e-09 deg/d
Q 2.499154657703352 6.0687e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2601  
   data-arc span      17547 days (48.04 yr)  
   first obs. used      1973-03-07  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47144  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:03:54  

Additional Information
 Earth MOID = 1.02233 au 
 Jupiter MOID = 2.48751 au 
 T_jup = 3.615 
[ 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 14.04   n/a E2021B10  
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. 2020-October); 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

Alternate Designations
 1990 DM1 = 1973 EH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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