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 ]  
1203 Nanna (1931 TA)
Classification: Main-belt Asteroid          SPK-ID: 2001203
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2496786209524176 7.7541e-09  
a 2.885266276437183 9.9867e-09 au
q 2.164876971455831 2.0754e-08 au
i 5.993340097242724 3.0293e-07 deg
node 224.5217815433336 3.7042e-06 deg
peri 177.2239901488371 6.9606e-06 deg
M 57.47103562808574 4.1473e-06 deg
tp 2458914.725286003342
(2020-Mar-06.22528600)
1.9948e-05 TDB
period 1790.09993320045
4.90
9.294e-06
2.545e-08
d
yr
n .2011060909635196 1.0441e-09 deg/d
Q 3.605655581418536 1.248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3061  
   data-arc span      34493 days (94.44 yr)  
   first obs. used      1926-10-07  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41599  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:08:26  

Additional Information
 Earth MOID = 1.17251 au 
 Jupiter MOID = 1.81348 au 
 T_jup = 3.238 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457110.5 (2015-Mar-29.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2462636489087165 8.2209e-09  
q 2.176424040502412 2.2451e-08 au
tp 2457113.941253292452
(2015-Apr-01.44125329)
1.9092e-05 TDB
node 224.7408311124393 3.7381e-06 deg
peri 175.7504714435388 7.1391e-06 deg
i 5.958558396325836 3.0103e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3061  
   data-arc span      34493 days (94.44 yr)  
   first obs. used      1926-10-07  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41599  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:08:26  

Additional Information
 Jupiter MOID = 1.81348 au 
 T_jup = 3.238 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.758373106359287E-17 -1.748122799260656E-16 -1.117646703342509E-13 6.524247740453799E-16 -3.183508031071509E-14 5.908582147427699E-16
q -1.748122799260656E-16 5.040314539106081E-16 3.200236860035627E-13 -1.517953181364909E-15 9.109146491543221E-14 -1.670983039326939E-15
tp -1.117646703342509E-13 3.200236860035627E-13 3.644880635191452E-10 -2.319866808884727E-11 1.196364375660296E-10 -1.692367282283233E-12
node 6.524247740453799E-16 -1.517953181364909E-15 -2.319866808884727E-11 1.397367761148263E-11 -1.953846341847851E-11 2.571509322123572E-14
peri -3.183508031071509E-14 9.109146491543221E-14 1.196364375660296E-10 -1.953846341847851E-11 5.096701002617103E-11 -4.430526458173222E-13
i 5.908582147427699E-16 -1.670983039326939E-15 -1.692367282283233E-12 2.571509322123572E-14 -4.430526458173222E-13 9.062091155206178E-14

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 11.73   n/a E2021B10  
diameter diameter 35.18 km 3.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
rotation period rot_per 18.54 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:
[Warner, B.D. (2011) Minor Planet Bull. 38, 96-101.]
geometric albedo albedo 0.0473   0.012 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

1203 Nanna (1931 TA)          Discovered 1931-Oct-05 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1931 TA = 1926 RH = 1978 AD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-16 11:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin