ASTROSAT CZTI

Data Quality Report

Orbit 29657

Creation date: 2024-06-27T20:06:32.616221
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/AS1C05_019T01_9000004270_29657cztM0_level2.evt modeM0/AS1C05_019T01_9000004270_29657cztM0_level2_quad_clean.evt
Size (bytes)582,007,680108,005,760
Size555.0 MB 103.0 MB
Events in quadrant A2,906,184743,233
Events in quadrant B3,114,531763,650
Events in quadrant C3,065,768744,171
Events in quadrant D8,134,971602,385

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126881
B0132891
C0131161
D0282711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5968320.536193%
B5968641.072386%
C5968871.457775%
D5968181430.395442%

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 7158 5968 0 0 0.00% 0.00%
B 7158 5968 10 10 0.14% 0.17%
C 7158 5968 0 0 0.00% 0.00%
D 7158 5968 1591 1591 22.23% 26.66%

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 13 254 11292 70.49 752 735 149.8
A 3 137 7165 42.93 752 735 149.8
A 0 226 6402 37.84 752 735 149.8
B 10 245 65324 463.97 755 736 139.2
B 4 171 25421 177.33 755 736 139.2
B 12 111 16729 114.89 755 736 139.2
C 14 238 121602 699.02 744 748 172.9
C 3 233 21616 120.7 744 748 172.9
C 2 114 14472 79.38 744 748 172.9
D 7 80 5191958 34442.89 638 622 150.7
D 8 195 470337 3116.41 638 622 150.7
D 2 250 36576 238.54 638 622 150.7

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