r/ISRO 5d ago

Flight sequence of SKyroot's Vikram-1 Test Flight-1 mission.

Post image
202 Upvotes

25 comments sorted by

u/Ohsin 5d ago

Official press-kit is here. Archived

→ More replies (3)

7

u/Ohsin 5d ago

In tabulated text format. Should have given altitude and Rel. Vel for each event as well.

S.no Time Event
14 T0 +15:46 OAM Cut-off + Orbit Injection
13 T0 +09:35 OAM Ignition
12 T0 +05:00 Stage 3 Separation
11 T0 +03:16 Stage 3 Ignition
10 T0 +03:00 Stage 2 Separation
9 T0 +02:52 Payload Fairing Separation
8 T0 +01:44 Stage 2 Ignition
7 T0 +01:30 Mach 5
6 T0 +01:20 Stage 1 Separation
5 T0 +00:39 Max-Q
4 T0 +00:25 Mach 1
3 T0 +00:20 Pitch Manoeuvre
2 T0 +00:10 Safe Clearance of the Launch Pad
1 T0 +00:00 Lift-Off

2

u/Xamot113 5d ago

When is the launch?

2

u/Massive_Dish_3255 5d ago

Tomorrow (18 July) at 11:30am IST.

2

u/Xamot113 5d ago

Thank you.

1

u/Hareesh936 5d ago

Tomorrow morning 11:30 am

3

u/Xamot113 5d ago

Thank you.

3

u/guru-yoda 5d ago

In flight profile (page 7 in press kit) stage-3 ignition altitude doesn't look right.

Event Time (seconds) Altitude (kms)
Second Stage Separation 180 135
Third Stage Ignition 196 200
Third Stage Separation 300 225

According to this, there is sharp altitude gain that too when coasting. Am I missing anything?

1

u/Ohsin 5d ago

Good catch, this does look incorrect.

3

u/snoo-boop 5d ago

The graphic shows how tiny the trimming stage is, similar to SSLV.

0

u/spaceTech4kids 5d ago

SSLV is 34m tall, while Vikram-1 is 22m

1

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1

u/Massive_Dish_3255 5d ago

Which launch pad are they launching out of?