They're not orphan just they haven't reached maturity yet.
Here's two of my blocks.
{
"account" : "",
"address" : "DCQUJCqUFh8GudbVSLV1Qbfx6bvJHjn2Pe",
"category" : "generate",
"amount" : 10.61000000,
"confirmations" : 3820,
"generated" : true,
"blockhash" : "ff5f3e1e80a60c08a0da16332c18c9e5f02a57efd79ac0c795edc72ea52f7690",
"blockindex" : 0,
"blocktime" : 1386632667,
"txid" : "72550350fcc7ab591aa556da9e2a1811053bf42673220bd55506f7bac6406ef5",
"time" : 1386632667,
"data" : "",
"timereceived" : 1386632668
},
{
"account" : "",
"address" : "DCQUJCqUFh8GudbVSLV1Qbfx6bvJHjn2Pe",
"category" : "immature",
"amount" : 10.58000000,
"confirmations" : 3018,
"generated" : true,
"blockhash" : "0ee1e847b2ab98cdb9ce02cbfbc575473bdf412aaea6fee6098c166e0759b50d",
"blockindex" : 0,
"blocktime" : 1386667871,
"txid" : "cd1eeaa28c96361fb93deaaa49e6502561ceb2c6020643d257a4ccce282f3944",
"time" : 1386667870,
"data" : "",
"timereceived" : 1386667870
},