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 ]  
100681 (1997 YD1)
Classification: Mars-crossing Asteroid          SPK-ID: 2100681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2922543702120751 5.7385e-08  
a 2.276640027470501 1.4647e-08 au
q 1.611282030042509 1.2983e-07 au
i 22.71020343545368 5.1488e-06 deg
node 287.2760098629904 1.5571e-05 deg
peri 251.7212946079613 2.0003e-05 deg
M 202.0429861769131 2.1927e-05 deg
tp 2459751.024171251487
(2022-Jun-20.52417125)
8.0904e-05 TDB
period 1254.700230484911
3.44
1.2109e-05
3.315e-08
d
yr
n .2869211236702084 2.769e-09 deg/d
Q 2.941998024898494 1.8928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      812  
   data-arc span      8398 days (22.99 yr)  
   first obs. used      1997-12-19  
   last obs. used      2020-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44807  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:55  

Additional Information
 Earth MOID = .750197 au 
 Jupiter MOID = 2.4559 au 
 T_jup = 3.453 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.45   n/a E2021B55  
rotation period rot_per 22.7415 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

100681 (1997 YD1)          Discovered 1997-Dec-19 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-09 05:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin