CHICAGO, June 3 (Reuters) - Spot soybean bids were steady, while corn bids were steady to mixed in the U.S. Midwest on Tuesday as planting wound to a close and selling remained relatively slow.

• The U.S. Department of Agriculture's first rating of the soybean crop this year came in at 67% good to excellent, slightly below the average estimate of 68%.

• The USDA reported 93% of corn was seeded and 69% of the crop was in good to excellent condition. Both were in line with analyst expectations.

• Regular rain has helped most soybean and corn crops in the Midwest get off to good starts, though the showers also delayed planting in some areas.

• Soybean futures Sv1 were last up 6-1/4 cents to $10.39-1/2 per bushel. Corn futures Cv1 were up 1-1/4 cents to $4.39-1/2 per bushel

Basis values are quoted against CBOT futures in cts/bu:

NOTE: 0 = Option price, UNC = Unchanged, UNQ = Unquoted

NC = Not comparable, DP = Delayed price, N/A = Not available,

F = January, H = March, K = May, N = JulyQ = August, U = September, X = November, Z = December

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LINKS: 0#USCSHGRN-PM

For U.S. forward basis spreadsheets, please click:

CORN/BASIS, SOYA/BASIS, WHEAT/BASIS, MILO/BASIS

- CBOT corn report COR/

- CBOT soybean report SOY/C

- CBOT wheat report WHE/C

- U.S. grain barge freight values BG/US

- U.S. Midwest cash grain PM GRA/PM

- U.S. CIF/FOB Gulf Grain GRA/F

(Reporting by Heather Schlitz; Editing by Shailesh Kuber)

((Heather.Schlitz@thomsonreuters.com;))