Timeline of events for the series:

Pre-Year 1
--The virus begins it's first attack @ 10:16 PM, January 4th, 2011
--The Hubble and the hijacked spysats detect the NEO @ 11:00 PM, January 4th, 2011

 Teaser scenes

Year 1
"Dragon's Egg"  [Winter --Late January?]
"Alconost"  [Late Winter --Late March?]
"Rogue Harvest"  [Spring --April? May?]
"Dimensions' Gate" [Fall --August?]
"Cardenio" [Fall --September?]
"Ghost Rockets of Sweden" [Late October --Starts Oct. 22nd, Should end before the 31st]


Pre-Year 2
--Nightwatch is brought in as one of the consultants working to avert disaster.  When the season
starts, this is a subtext that will be alluded to.

Virus returns scene [November 3rd, 2011]

Library scene with Callow [November 5th, 2011]

"The Orion Affair" [November 28 & 29, 2011]

Chatroom Scenes [January 6th & 8th, 2012]

Tesla Beam re-discovery scene [January 9th, 2012]

Spacecraft scavenging scene [January 25th]


Year 2 [2012]
"The Kindness of Strangers" [Winter] (early February??)

Astronaut selection scene [February 25th]
[Callow recruits Tom as Nightwatch's representative on the expedition.]

Training scenes [??th]

Construction scenes [??th]

Kate Thornton's Story][Late Winter or Spring] (early March ??)

Launch Scene [Late March? April? May?]
(Allow 6 months for round trip.)

"Jigsaw Creek" [Spring] (May ??)

Expedition reports scenes [June? July?]

"Fly-by-Wire" [Fall, until it's conclusion] (late August ?? -- Until when?)

    6:42 AM, August 29th: Simon reads Tom Darby's obituary in the papers.

Intercept scene

Survey the comet & landing scenes

Rocket & sail attachment scenes

Lasersat anchoring scene

Testing the rigging scene

Separation scene

Clean-up scene

Rescue scene

Samantha's Funeral

[Jaimie's Story][October]

Homecoming Scene

Final wrap-up scene [October? November? December?]

[Nate's Story][Christmas]

Year 3 [2013]
"The Golem of Prague"
[Unknown]


 
Original Impact Deadline -- January 2014 [I should convert this date to June 29, to better jibe with Tunguska]

Year 4 [2014]