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
JPL Small-Body Database Browser
Search: [ help ]  
2068 Dangreen (1948 AD)
Classification: Main-belt Asteroid          SPK-ID: 2002068
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09731999064509873 4.1299e-08  
a 2.771273088548174 1.3685e-08 au
q 2.501572817495652 1.1539e-07 au
i 12.91017352155186 4.5063e-06 deg
node 95.9211054950615 1.9696e-05 deg
peri 321.2557240781881 3.0559e-05 deg
M 298.9250999970752 2.5769e-05 deg
tp 2459286.375987174289
(2021-Mar-12.87598717)
0.00012171 TDB
period 1685.067930980084
4.61
1.2481e-05
3.417e-08
d
yr
n .2136412386595083 1.5824e-09 deg/d
Q 3.040973359600697 1.5016e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2137  
   data-arc span      32582 days (89.20 yr)  
   first obs. used      1931-05-21  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:45:21  

Additional Information
 Earth MOID = 1.52813 au 
 Jupiter MOID = 2.24911 au 
 T_jup = 3.294 
[ 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 11.2   n/a MPO448932  
diameter diameter 34.322 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.032   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2068 Dangreen (1948 AD)          Discovered 1948-Jan-08 by Laugier, M. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1948 AD = 1931 KJ = 1939 DJ = 1955 TA1 = 1972 JS = 1974 VR2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-24 03:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin