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 ]  
3992 Wagner (1987 SA7)
Classification: Main-belt Asteroid          SPK-ID: 2003992
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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07916515053347704 3.1059e-08  
a 3.019331023836353 1.4283e-08 au
q 2.78030522882395 9.1397e-08 au
i 10.41943757850031 3.4769e-06 deg
node 168.7853029186965 2.1693e-05 deg
peri 157.7702111063494 3.3838e-05 deg
M 123.4069134022277 2.6114e-05 deg
tp 2458343.596599044330
(2018-Aug-13.09659904)
0.00013927 TDB
period 1916.304506970775
5.25
1.3598e-05
3.723e-08
d
yr
n .1878615839447536 1.333e-09 deg/d
Q 3.258356818848755 1.5414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2892  
   data-arc span      24703 days (67.63 yr)  
   first obs. used      1953-03-14  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42439  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:55:21  

Additional Information
 Earth MOID = 1.77255 au 
 Jupiter MOID = 2.09638 au 
 T_jup = 3.217 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457046.5 (2015-Jan-24.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08111687120251029 3.1591e-08  
q 2.772335140559191 9.3122e-08 au
tp 2456412.571169255312
(2013-Apr-30.07116926)
0.00013495 TDB
node 168.858568280982 2.169e-05 deg
peri 154.9885442366214 3.3065e-05 deg
i 10.41902539100254 3.4773e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2892  
   data-arc span      24703 days (67.63 yr)  
   first obs. used      1953-03-14  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42439  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:55:21  

Additional Information
 Jupiter MOID = 2.09638 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.980023789478234E-16 -2.915037162606064E-15 -1.448751358145196E-13 -6.773503883703181E-16 -3.625811135151454E-14 5.481827654558502E-16
q -2.915037162606064E-15 8.671674132023975E-15 2.400090051596729E-13 3.282100148948421E-15 7.937451722178375E-14 -1.28263454732927E-15
tp -1.448751358145196E-13 2.400090051596729E-13 1.821088815906532E-8 -1.403285390384833E-12 3.389447506631246E-9 -3.439374994000173E-12
node -6.773503883703181E-16 3.282100148948421E-15 -1.403285390384833E-12 4.704586327875575E-10 -4.628786545053672E-10 8.353402684802647E-12
peri -3.625811135151454E-14 7.937451722178375E-14 3.389447506631246E-9 -4.628786545053672E-10 1.093299315119317E-9 -8.864745693188917E-12
i 5.481827654558502E-16 -1.28263454732927E-15 -3.439374994000173E-12 8.353402684802647E-12 -8.864745693188917E-12 1.20912819532775E-11

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 11.5   n/a MPO365294  
diameter diameter 17.131 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 20.628 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. (2014) Minor Planet Bull. 41, 177-178.]
geometric albedo albedo 0.166   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3992 Wagner (1987 SA7)          Discovered 1987-Sep-29 by Borngen, F. at Tautenburg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1987 SA7 = 1951 YZ = 1953 EF1 = 1954 JB = 1982 UH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-28 12:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin