Diwata-2

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Diwata-2
Philippines-OSCAR 101
PO-101
Type: Earth observation satellite
amateur radio satellite
Country: PhilippinesPhilippines Philippines
Operator: DOST
COSPAR-ID : 2018-084A
Mission dates
Dimensions: 56 kg
Size: 50 cm × 50 cm × 50 cm
Begin: October 29, 2018, 04:51 UTC
Starting place: Tanegashima YLP-1
Launcher: H-2A
Orbit data
Rotation time : 96.5 min
Orbit inclination : 98.8 °
Apogee height :  607.5 km
Perigee height :  593.1 km

Diwata 2 , also Diwata-2B , Philippines-OSCAR 101 or PO-101 , is a Philippine earth observation and amateur radio satellite . Diwata 2 is the second microsatellite developed and constructed by scientists and engineers as part of the PHL-Microsat (Philippine Scientific Earth Observation Microsatellite, PHL-Microsat) program of the Philippine Ministry of Science and Technology (DOST). The University of the Philippines , the University of Hokkaidō and the University of Tōhoku were involved in the development.

Mission objectives

Diwata-2 carries optical instruments to achieve the following goals:

  • Determination of the extent of damage in the event of a disaster
  • Monitoring of natural and cultural heritage sites
  • Monitoring of vegetation changes
  • Observe cloud patterns and weather disturbances

In addition to the optical payloads, Diwata-2 also carries an amateur radio payload. Its purpose is to promote interest in amateur radio and satellite technology in the country. It is also intended to provide an alternative means of communication in the event of disasters and emergencies ( emergency radio ).

Payloads

To fulfill its mission objectives, Diwata-2 carries the following payloads:

  • Precision telescope
  • Multispectral camera with tunable liquid crystal filter (LCTF)
  • Wide field camera
  • Midfield camera
  • Camera with increased image resolution
  • Amateur radio payload

Mission history

The satellite was launched on October 29, 2018 with an H-2A from the Japanese Tanegashima Space Center together with GOSAT 2 and four other satellites. On April 12, 2019, AMSAT North America awarded the OSCAR number 101.

Frequencies

The payloads used for earth observation use downlink frequencies in the S and X bands . The following frequencies for the satellite with the callsign D1W2PH have been coordinated by the International Amateur Radio Union :

  • 437.500 MHz - Uplink FM CTCSS 141.3 Hz , APRS digipeater
  • 145.900 MHz - Downlink FM APRS Digipeater
  • 145.900 MHz - CW beacon

Web links

Individual evidence

  1. ↑ Ciprian Sufitchi: DIWATA 2B. April 10, 2019, accessed April 12, 2019 .
  2. ^ Diwata-2. Retrieved April 12, 2019 .
  3. ↑ Drew glass burner: Diwata-2 Designated Philippines-OSCAR 101 (PO-101). April 12, 2019, accessed April 12, 2019 .