Yup, and the name will be used for future Chinese planetary exploration missions as well.
Mars Express did something similar. Perhaps the approach trajectory is for delivering the lander to the target landing site.
A 70-metre diameter parabolic antenna reflector was hoisted and installed in Tianjin on April 25, to support the Tianwen-1 Mars mission. The GRAS-4 project was carried out by the National Astronomical Observatories of China (NAOC). https://mp.weixin.qq.com/s/gRYtMYPaYTKVCzXeG477uA
Footage of the hoisting of the 70-metre diameter parabolic antenna in Tianjin to support China's Tianwen-1 Mars mission. Footage: NAOC.
Tianwen-1 Mars mission update: Cargo ships Yuanwang-21 & 22 have collected the Long March 5 rocket components from Tianjin & today set sail for Hainan. The Mars spacecraft arrived at Wenchang satellite launch centre on April 10.
The other two 2020 Mars missions have windows from 14 July to 3 August and from 17 July to 5 August.
Confirmed Tianwen-1 launch date on 23rd July at noon. backup windows on 24th,25th. Now Tianwen-1 and LM-5Y4 status are green and preparation is smoothly.
It seems that there hasn’t been any detailed specifications of the scientific instruments of the now-about-to-be-rolled-to-launch-pad of the Chinese Tianwen-1 Mars Orbiter and PRCMarsRover missions in English from anywhere I have seen - at least till now!Thanks to cathirame I finally get a detailed specifications list that I have crudely translated into English! Bear in mind that my UG physics were bad and the Chinese scientific terms used are a little bit different from my familar translations so the translation is crude.Source: LI Chunlai, LIU Jianjun, GENG Yan, CAO Jinbin, ZHANG Tielong, FANG Guangyou, YANG Jianfeng, SHU Rong, ZOU Yongliao, LIN Yangting, OUYANG Ziyuan. Scientific Objectives and Payload Configuration of China's First Mars Exploration Mission[J].Journal of Deep Space Exploration, 2018, 5(5): 406-413. doi: 10.15982/j.issn.2095-7777.2018.05.002Firstly, here are the specifications of the 7 instruments of the TW-1 Mars Orbiter:1. Medium Resolution CameraImaging wavelength: Visible LightColor: Standard RGBImage Resolution: < 100 m at 400 km altitudeImage swath: >= 400 km at 400 km altitudePixel Resolution: >= 4096 x 30722. High Resolution CameraImage resolution: < 2.5 m (< 0.5 m in certain regions) multi-color; < 10 m (< 2.0 m in certain regions) panchromaticImage swath: >= 9 km at 265 km altitude3. Mars orbiter sub-surface radarRadar frequency: 10-20 & 30-50 MHzTransmitter power: >= 100 WReceiver power: <= -87 dBmMaximum detection depth: ~100 m for Martian sub-surface soil (εr = 3.0~4.0); ~1000 m for Martian polar ice layers (εr = 3.0)Depth resolution: ~ 1 m4. Mars mineralogy spectrometerWavelength bands: Visible Light - NIR band 0.45~1.05 μm; NIR-MIR band 1.00~3.40 μmSpectral resolution: < 10 nm for Visible Light - NIR band; < 12 nm for 1.0~2.0 μm; < 25 nm for 2.0~3.4 μm5. Mars magnetometerMeasurement range: +- 2000 nTNoise level <= 0.01 nT/√HzResolution: <= 0.01 nTPrecision: 0.1 nT6. Mars ions and neutral particles analyserLimit of Detection of low energy ions:Energy range: 5 eV ~ 25 keVdelta-E/E: 15%Mass: 1~ 70 amudelta-m/m: 25%POV: 90° x 360°Angular resolution: 11.2° x 22.5°Time resolution: 8sLimit of Detection of low energy neutral particles:Energy range: 50 eV ~ 3 keVdelta-E/E: 100%Mass: 1 ~ 32 amuPOV: 15° x 160°Angular resolution: 10° x 25°Time resolution: 4s7. Mars energetic particles analyserLimit of Detection:Energy range: 0.1 ~ 12 MeV (Electrons) / 2 ~100 MeV (Protons) / 25 ~ 300 MeV (Alpha Particles/Heavy Ions)delta-E/E: 15%Flux: 0 ~ 10^5 cm^-2 s^-1Atomic Number: 1 <= Z <= 26 (H - Fe)delta-m/m: <=25% (Z <= 9, 25 ~ 300 MeV & 10 <= Z <= 26, 100 ~ 300 MeV); <=60% (10 <= Z <= 26, 25 ~ 100 MeV)POV: 60°Time resolution: 4s (Electrons, Protons, Alpha Particles); 60s (Heavy Ions)And here comes the 6 instruments on the yet-to-be-named @PRCMarsRover which will get a name via a planned public naming contest:A. Terrain CameraImaging wavelength: Visible LightColor: Standard RGBNominal imaging distance: 0.5 m ~ ∞Pixel Resolution: 2048 x 2048B. Multi-spectral cameraImaging bands (/nm, Full Width At Half Maximum in brackets): 480 (20), 525 (20), 650 (12), 700 (15), 800 (25), 900 (30), 950 (50), 1000 (50)Color: Multi-spectralNominal imaging distance: 1.5 m ~ ∞Pixel Resolution: 2048 x 2048C. Rover sub-surface radarChannel 1:Median frequency: 55 MHzWorking bandwidth: 40 MHzPenetrating depth of Martian ice layers: ~1 mMaximum detection depth: >=10 m for Martian sub-surface soil (εr = 3.0~4.0); >=100 m for Martian polar ice layers (εr = 3.0)Channel 2:Median frequency: 1300 MHzWorking bandwidth: 1000 MHzPrecision of layer thickness detection: ~cmMaximum detection depth: >=3 m for Martian sub-surface soil (εr = 3.0~4.0); >=10 m for Martian polar ice layers (εr = 3.0)D. Mars surface composition analyserLIBS measurements: Detects 10+ elements; optimal working distance from sample 2~5 m (max. 10 m); imaging resolution <= 100 μrad (0.2 mm @ 2 m; 0.5 mm @ 5 m)NIR measurments (850~2400 nm): spectral resolution <=12 nm; 130+ bands; POV >=1 mradE. Mars surface magnetometerMeasurement range: +- 2000 nTNoise level <= 0.01 nT/√HzResolution: <= 0.01 nTStability: <= 0.01 nT/°CSampling rate: 1/16/32/128 HzRange: +- 65000 nTF. Mars meteorology instrumentTemperature -120~50 °C (precision 0.1 °C); Pressure 1~1500 Pa (precision 0.1 Pa); Windspeed 0~70 m/s (precision 0.1 m/s); Wind Direction 0°~360° (precision 5°); Sound detection 20 Hz~2.5 kHz/2.5~20 kHz (Sensibility >50 mV/Pa; Dynamic Range >=90 dB)
