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 ]  
1668 Hanna (1933 OK)
Classification: Main-belt Asteroid          SPK-ID: 2001668
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2147682637830344 3.5884e-08  
a 2.807653850458386 8.4886e-09 au
q 2.204658907691687 9.9864e-08 au
i 4.739931533545679 3.8442e-06 deg
node 160.9543578042278 3.7437e-05 deg
peri 191.1668979654074 3.8041e-05 deg
M 144.670347825563 7.1118e-06 deg
tp 2458309.956888976652
(2018-Jul-10.45688898)
3.3273e-05 TDB
period 1718.358486758811
4.70
7.7929e-06
2.134e-08
d
yr
n .2095022678760335 9.5011e-10 deg/d
Q 3.410648793225084 1.0312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3068  
   data-arc span      31731 days (86.87 yr)  
   first obs. used      1933-07-24  
   last obs. used      2020-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44319  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:34:55  

Additional Information
 Earth MOID = 1.19935 au 
 Jupiter MOID = 2.02739 au 
 T_jup = 3.283 
[ 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 12.2   n/a MPO337259  
diameter diameter 24.813 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.038   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1668 Hanna (1933 OK)          Discovered 1933-Jul-24 by Reinmuth, K. at Heidelberg
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
1986-Nov-12 22:36 < 00:01 Inter 0.0474992449645163 0.0474988096687959 0.0474996802640549 5.80888345830489 5.8088834052483 2446747.442002644 0.438206218214538 85.00291783059 20.9614166434446 -86.0988893675766 338109.799831254 T 38 CATAB v2.0f-lin.ifort 2020-Jun-23 15:35:10 2020-Jun-23 15:35
1987-Dec-17 00:44 00:01 Cybel 0.0145846868423463 0.0145836356463439 0.0145857380384279 2.3680665436917 2.36806636756508 2447146.530547842 1.2132988690037 52.4436661988027 43.0972023233478 -6.01644893994755 41653.9621903904 T 38 CATAB v2.0f-lin.ifort 2020-Jun-23 15:35:10 2020-Jun-23 15:35
2113-Jul-24 11:33 < 00:01 Europ 0.0204229674486663 0.0204155612997008 0.020430374369315 4.93017933085011 4.93017922529236 2493021.980980160 0.26430025633577 419.661401328371 47.4574725075621 28.5919134452031 31448.8530431417 T 38 CATAB v2.0f-lin.ifort 2020-Jun-23 15:35:10 2020-Jun-23 15:35

Alternate Designations
 1933 OK = 1938 SY = 1966 QM 
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-18 20:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin