ASTROSAT CZTI

Data Quality Report

Orbit 05385

Creation date: 2024-06-27T14:54:35.892696
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_214T01_9000000684_05385cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05385cztM0_level2_quad_clean.evt
Size (bytes)800,902,08070,698,240
Size763.8 MB 67.4 MB
Events in quadrant A2,966,286453,502
Events in quadrant B3,129,279463,997
Events in quadrant C3,443,545453,032
Events in quadrant D14,293,673332,607

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129963
B0132972
C0140212
D0466302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6252280.447857%
B6252430.687780%
C6252280.447857%
D6252479476.679463%

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 7541 6251 1 1 0.01% 0.02%
B 7541 6252 2 2 0.03% 0.03%
C 7541 6252 1 1 0.01% 0.02%
D 7541 6252 5540 5540 73.47% 88.61%

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 14 111 21656 136.06 755 739 153.7
A 13 6 14414 88.95 755 739 153.7
A 15 174 11013 66.83 755 739 153.7
B 15 54 34284 228.31 773 757 146.8
B 4 81 27025 178.88 773 757 146.8
B 15 204 25478 168.34 773 757 146.8
C 1 16 537999 3120.09 738 745 172.2
C 12 4 11802 64.21 738 745 172.2
C 13 61 6007 30.56 738 745 172.2
D 7 237 10724763 70349.84 622 602 152.4
D 2 63 1061027 6956.32 622 602 152.4
D 2 136 53729 348.51 622 602 152.4

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