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{{Infobox spaceflight
| name = PSLV-C4
| names_list = MetSat mission


| image = PSLV.svg
| image_caption = Model of the [[PSLV]] rocket
| image_alt = 
| image_size = 70px


| mission_type = Deployment of three [[satellite]]s.
| operator =[[ISRO]]
| Harvard_designation = 
| COSPAR_ID = 
| SATCAT = 
| website = [http://www.isro.gov.in/ ISRO website]
| mission_duration = 1,211 seconds
| distance_travelled = 
| orbits_completed = 
| suborbital_range = 
| suborbital_apogee =


| spacecraft = [[Polar Satellite Launch Vehicle]]
| spacecraft_type = [[Expendable launch vehicle]]
| spacecraft_bus = 
| manufacturer =[[ISRO]]
| launch_mass = {{convert|295000|kg|lbs}}
| BOL_mass = 
| landing_mass = 
| dry_mass = 
| payload_mass = {{convert|1,060|kg|lbs}}
| dimensions = {{convert|44.4|m|ft|0}}<br>(overall height)
| power = 


|space_station = 
|start_date = 
|end_date = 
|arrival_craft = 
|departure_craft = 


| launch_date = {{start date|2002|09|12|15|53|00|7=IST}} ([[Indian Standard Time|IST]])
| launch_rocket = [[Polar Satellite Launch Vehicle]]
| launch_site = [[Satish Dhawan Space Centre|Sriharikota Launching Range]]
| launch_contractor =[[ISRO]]
| deployment_from = 
| deployment_date = 
| entered_service = 



| disposal_type = Placed in [[graveyard orbit]]
| deactivated = {{end date|2002|09|12}}
| destroyed = 
| last_contact = 
| recovery_by = 
| recovery_date = 
| decay_date = 
| landing_date = 
| landing_site = 




| orbit_reference = [[Geosynchronous transfer orbit]]
| orbit_regime =
| orbit_longitude = 
| orbit_slot = 
| orbit_semimajor = 
| orbit_eccentricity = 
| orbit_periapsis = 
| orbit_apoapsis = 
| orbit_inclination = 
| orbit_period = 
| orbit_RAAN = 
| orbit_arg_periapsis = 
| orbit_mean_anomaly = 
| orbit_mean_motion = 
| orbit_repeat = 
| orbit_velocity = 
| orbit_epoch = 
| orbit_rev_number = 
| apsis = 
|interplanetary = 


| payload_items = [[File:India flag-XL-anim.gif|25px]] [[Kalpana-1]] (Né MetSat)
| cargo_mass = {{convert|1,060|kg|lbs}}
| cargo_mass_press = 
| cargo_mass_unpress = 
| cargo_mass_fuel = 
| cargo_mass_gas = 
| cargo_mass_water = 


| instrument_type = 
| telescope_name = 
| telescope_type = 
| telescope_diameter = 
| telescope_focal_length= 
| telescope_area = 
| telescope_wavelength = 
| telescope_resolution = 
| instruments = 


| trans_band = 
| trans_frequency = 
| trans_bandwidth = 
| trans_capacity = 
| trans_coverage = 
| trans_TWTA = 
| trans_EIRP = 
| trans_HPBW = 


| programme = '''[[Polar Satellite Launch Vehicle#Launch history|Polar Satellite Launch Vehicle missions]]'''
| previous_mission = '''[[PSLV-C3]]'''
| next_mission = '''[[PSLV-C5]]'''


| insignia = 
| insignia_caption = 
| insignia_alt = 
| insignia_size = 
}}
'''PSLV-C4''' was the fourth operational launch and overall seventh mission of the [[PSLV]] program. This launch was also the forty-eight launch by [[Indian Space Research Organisation]] since its first mission on 1 January 1962. The vehicle carried and injected India's first dedicated [[Meteorological satellite]], [[Kalpana-1]] (originally called MetSat) into the [[Geosynchronous transfer orbit]]. PSLV-C4 was launched at 15:53 hours [[Indian Standard Time|IST]] on 12 September 2002 from [[Satish Dhawan Space Centre]] (then called "Sriharikota Launching Range").<ref name="PSLV-C4">{{cite news|title=PSLV-C4|publisher=[[Indian Space Research Organisation]]|accessdate=13 Jul 2016|url=http://www.isro.gov.in/launcher/pslv-c4}}</ref><ref name="PSLV-C4 MetSat mission">{{cite news|title=PSLV-C4 MetSat mission|publisher=[[Indian Space Research Organisation]]|accessdate=13 Jul 2016|url=http://www.isro.gov.in/update/09-sep-2002/pslv-c4-metsat-mission}}</ref><ref name="PSLV-C4 Launch Successful - Places MetSat in Orbit">{{cite news|title=PSLV-C4 Launch Successful - Places MetSat in Orbit|publisher=[[Indian Space Research Organisation]]|accessdate=13 Jul 2016|url=http://www.isro.gov.in/update/13-sep-2002/pslv-c4-launch-successful-places-metsat-orbit}}</ref><ref name="PSLV-C4 brochure">{{cite news|title=PSLV-C4 brochure|publisher=[[Indian Space Research Organisation]]|accessdate=13 Jul 2016|url=http://www.isro.gov.in/sites/default/files/pdf/pslv-brochures/PSLVC4.pdf}}</ref><ref name="PSLV-C4 launched successfully from Sriharikota">{{cite news|title=PSLV-C4 launched successfully from Sriharikota|work=[[The Times of India]]|accessdate=13 Jul 2016|url=http://timesofindia.indiatimes.com/city/PSLV-C4-launched-successfully-from-Sriharikota/articleshow/21841428.cms}}</ref><ref name="PSLV">{{cite news|title=PSLV|publisher=spacelaunchreport.com|accessdate=13 Jul 2016|url=http://www.spacelaunchreport.com/pslv.html}}</ref><ref name="ISRO's timeline. 1960s to today. #48">{{cite news|title=ISRO's timeline. 1960s to today. #48|publisher=[[Indian Space Research Organisation]]|accessdate=13 Jul 2016|url=http://www.isro.gov.in/about-isro/isros-timeline-1960s-to-today#48}}</ref>

==Mission highlights==
*Fourth operational launch of the [[PSLV]] program.
*Overall seventh mission of the [[PSLV]] program.
*First Indian [[spaceflight]] to inject a satellite in the [[Geosynchronous transfer orbit]].
*PSLV-C4 carried and injected India's first dedicated [[Meteorological satellite]], [[Kalpana-1]].
<ref name="PSLV-C4"/><ref name="PSLV-C4 MetSat mission"/><ref name="PSLV-C4 Launch Successful - Places MetSat in Orbit"/><ref name="PSLV-C4 brochure"/><ref name="PSLV-C4 launched successfully from Sriharikota"/><ref name="PSLV"/><ref name="ISRO's timeline. 1960s to today. #48"/>

==Mission parameters==
* '''Mass''':
** ''Total liftoff weight:'' {{convert|295000|kg|lbs}}
** ''Payload weight:'' {{convert|1060|kg|lbs}}
* '''Overall height''': {{convert|44.4|m|ft|1}}
* '''Propellant''':
** ''First stage:'' [[Solid-fuel rocket|Solid]] [[Hydroxyl-terminated polybutadiene|HTPB based]] (138.0 + 54 tonnes)
** ''Second stage:'' [[Liquid fuel rocket|Liquid]] [[Unsymmetrical dimethylhydrazine|UDMH]] + {{N2O4}} (40.6 tonnes)
** ''Third stage:'' [[Solid-fuel rocket|Solid]] [[Hydroxyl-terminated polybutadiene|HTPB based]] (7.6 tonnes)
** ''Fourth stage:'' [[Liquid fuel rocket|Liquid]] [[Monomethylhydrazine|MMH]] + [[Mixed oxides of nitrogen|MON]] (2.5 tonnes)
* '''Engine''':
** ''First stage:'' S139
** ''Second stage:'' [[Vikas (rocket engine)|Vikas]]
** ''Third stage:''
** ''Fourth stage:'' 2 x PS-4
* '''[[Thrust]]''':
** ''First stage:'' 4,628 + 662 x 6 [[Newton (unit)|kN]]
** ''Second stage:'' 725 [[Newton (unit)|kN]]
** ''Third stage:'' 260 [[Newton (unit)|kN]]
** ''Fourth stage:'' 7.4 x 2 [[Newton (unit)|kN]]
* '''Duration''': 1,211 seconds
<ref name="PSLV-C4"/><ref name="PSLV-C4 MetSat mission"/><ref name="PSLV-C4 brochure"/>

==Payload==
PSLV-C4 carried and deployed India's first dedicated [[Meteorological satellite]], [[Kalpana-1]] into the [[Geosynchronous transfer orbit]].<ref name="PSLV-C4"/><ref name="PSLV-C4 MetSat mission"/><ref name="PSLV-C4 brochure"/>

{| class="wikitable sortable"
|-
! Country !! Name !! Nos !! Mass !! Type !! Objective
|-
| {{Flagicon|India}} India || [[Kalpana-1]] || 1 || 1,060 kg || [[Satellite]] || [[Meteorological satellite]]. [[Weather]] & [[climate]] monitoring of [[earth]]
|-
|}

{{Portal bar|India|Science|Space|Spaceflight}}

==See also==
* [[Indian Space Research Organisation]]
* [[Polar Satellite Launch Vehicle]]

== References ==
{{Reflist|colwidth=30em}}
{{PSLV}}
{{Indian space programme}}
{{Expendable launch systems}}

[[Category:Spacecraft launched in 2002]]
[[Category:Polar Satellite Launch Vehicle]]

PSLV-C4 - Revision history

Ajay Kumar: Created a new article