ASTROSAT CZTI

Data Quality Report

Orbit 22292

Creation date: 2024-06-27T18:39:05.530078
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/AS1A07_018T08_9000003296_22292cztM0_level2.evt modeM0/AS1A07_018T08_9000003296_22292cztM0_level2_quad_clean.evt
Size (bytes)474,647,04074,986,560
Size452.7 MB 71.5 MB
Events in quadrant A3,307,714470,246
Events in quadrant B3,384,019480,760
Events in quadrant C3,290,701447,315
Events in quadrant D3,966,151434,132

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134002
B0137322
C0134753
D0157602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6283831.321025%
B62841111.766391%
C62831191.894000%
D62831642.610218%

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 7553 6284 0 0 0.00% 0.00%
B 7554 6285 2 2 0.03% 0.03%
C 7553 6284 0 0 0.00% 0.00%
D 7553 6283 101 101 1.34% 1.61%

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 13 254 7876 41.19 859 844 170.7
A 0 226 7455 38.73 859 844 170.7
A 3 137 6919 35.59 859 844 170.7
B 3 64 23450 140.15 857 839 161.3
B 12 111 19177 113.67 857 839 161.3
B 11 111 17119 100.91 857 839 161.3
C 14 238 130469 695.95 810 820 186.3
C 13 61 5653 25.94 810 820 186.3
C 10 91 2301 7.95 810 820 186.3
D 1 52 845310 4306.38 813 791 196.1
D 13 172 30237 150.15 813 791 196.1
D 2 234 23929 117.99 813 791 196.1

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