ASTROSAT CZTI

Data Quality Report

Orbit 08392

Creation date: 2024-06-27T15:31:51.697211
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/AS1A03_062T01_9000001176_08392cztM0_level2.evt modeM0/AS1A03_062T01_9000001176_08392cztM0_level2_quad_clean.evt
Size (bytes)476,997,12093,648,960
Size454.9 MB 89.3 MB
Events in quadrant A3,699,060583,683
Events in quadrant B3,506,927607,811
Events in quadrant C3,243,429590,689
Events in quadrant D3,522,178567,590

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153273
B0148652
C0142802
D0153142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69772623.755196%
B6977660.945965%
C6977230.329655%
D6977821.175290%

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 9227 6979 1 1 0.01% 0.01%
B 9227 6979 3 3 0.03% 0.04%
C 9227 6979 5 5 0.05% 0.07%
D 9227 6979 59 59 0.64% 0.85%

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 465845 2693.36 838 820 172.7
A 15 236 13805 75.21 838 820 172.7
A 0 226 7724 39.99 838 820 172.7
B 5 255 86668 528.51 854 834 162.4
B 0 214 34161 205.21 854 834 162.4
B 4 81 24763 147.34 854 834 162.4
C 1 16 27838 141.13 824 826 191.4
C 13 61 6237 28.27 824 826 191.4
C 12 4 2248 7.43 824 826 191.4
D 2 14 241151 1226.12 813 792 196.0
D 2 136 39843 199.21 813 792 196.0
D 14 34 30643 152.28 813 792 196.0

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