Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
85091 (4112 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2085091
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1403488816637787 5.3137e-08  
a 3.154048448524404 2.1839e-08 au
q 2.711381276060628 1.6918e-07 au
i 5.730387896591579 5.6541e-06 deg
node 149.3303872636261 4.3026e-05 deg
peri 244.8190521273819 4.6708e-05 deg
M 152.7351378702902 1.7821e-05 deg
tp 2458528.464618501307
(2019-Feb-13.96461850)
9.9049e-05 TDB
period 2045.978035551406
5.60
2.125e-05
5.818e-08
d
yr
n .175954968110387 1.8275e-09 deg/d
Q 3.596715620988181 2.4904e-08 au
  Orbit Determination Parameters
   # obs. used (total)      816  
   data-arc span      17428 days (47.72 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53919  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:25:18  

Additional Information
 Earth MOID = 1.72318 au 
 Jupiter MOID = 1.86731 au 
 T_jup = 3.184 
[ 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 14.81   n/a MPO637169  
diameter diameter 5.579 km 2.686 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85091 (4112 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 4112 T-2 = 2001 RE27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-22 06:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin