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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
853 Nansenia (A916 GN)
Classification: Main-belt Asteroid          SPK-ID: 2000853
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1053901867072713 3.4926e-08  
a 2.312619911940489 5.9287e-09 au
q 2.068892467638127 8.0916e-08 au
i 9.21412853059752 4.2376e-06 deg
node 182.8397538950896 2.0769e-05 deg
peri 59.71995697138095 2.7868e-05 deg
M 189.4863033882043 1.8669e-05 deg
tp 2459608.931354729139
(2022-Jan-29.43135473)
6.7014e-05 TDB
period 1284.561252584667
3.52
4.9397e-06
1.352e-08
d
yr
n .2802513303866543 1.0777e-09 deg/d
Q 2.55634735624285 6.5535e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2797  
   data-arc span      36367 days (99.57 yr)  
   first obs. used      1920-07-11  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44212  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:38:55  

Additional Information
 Earth MOID = 1.07478 au 
 Jupiter MOID = 2.4586 au 
 T_jup = 3.559 
[ 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 11.6   n/a MPO502161  
diameter diameter 27.593 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.931 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.051   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.710   0.069 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=7.88, mean=12.02, max.=16.16) deg.
U-B UB 0.290   0.080 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.88 deg.
Tholen spectral type spec_T XD   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

853 Nansenia (A916 GN)          Discovered 1916-Apr-02 by Belyavskij, S. at Simeis
Discovered at Simeis during the First World War while Simeis was not in communication with the Rechen-Institut for long periods of time were given provisional designations containing the Greek letter SIGMA. These are here abbreviated S.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1919-Mar-05 08:30 < 00:01 Juno 0.0492759798213229 0.0492706197203459 0.0492813404247298 7.23385881373077 7.23385877960042 2422022.854197411 0.148317280644597 366.103177754298 35.2103062653047 -43.3694547569621 144463.54052812 T 39 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:10 2020-Feb-22 15:39
2151-May-11 05:21 < 00:01 Iris 0.0207378157757101 0.0207337313371083 0.0207419057633161 7.22580854076659 7.22580850240261 2506826.723229955 0.699353780385411 578.603756189723 31.9503273443665 -69.6129803962401 91017.4965455595 T 39 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:10 2020-Feb-22 15:39

Alternate Designations
 A916 GN = 1930 FY = 1930 GJ = 1952 SR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-10 10:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin