ASTROSAT CZTI

Data Quality Report

Orbit 04672

Creation date: 2024-06-27T14:45:26.291315
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_215T01_9000000586_04672cztM0_level2.evt modeM0/AS1G05_215T01_9000000586_04672cztM0_level2_quad_clean.evt
Size (bytes)841,458,24073,946,880
Size802.5 MB 70.5 MB
Events in quadrant A2,948,007544,019
Events in quadrant B3,114,758553,079
Events in quadrant C2,942,414541,466
Events in quadrant D16,044,964151,565

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133373
B0136412
C0132122
D0518742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6405280.437158%
B6405250.390320%
C6405300.468384%
D6405573089.461358%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7540 6406 0 0 0.00% 0.00%
B 7540 6406 0 0 0.00% 0.00%
C 7540 6406 0 0 0.00% 0.00%
D 7540 6405 5255 5255 69.69% 82.05%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 8 15 16965 104.73 761 745 154.9
A 12 194 7724 45.06 761 745 154.9
A 0 226 7472 43.44 761 745 154.9
B 14 167 69682 469.72 768 750 146.8
B 15 204 57075 383.81 768 750 146.8
B 0 219 15883 103.12 768 750 146.8
C 9 68 8367 43.77 749 752 174.0
C 13 61 6021 30.28 749 752 174.0
C 9 247 5131 25.17 749 752 174.0
D 8 112 13886919 192744.25 296 286 72.0
D 2 63 383829 5323.52 296 286 72.0
D 13 235 292870 4061.02 296 286 72.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter