ASTROSAT CZTI

Data Quality Report

Orbit 22930

Creation date: 2024-06-27T18:47:41.540698
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/AS1T03_170T01_9000003388_22930cztM0_level2.evt modeM0/AS1T03_170T01_9000003388_22930cztM0_level2_quad_clean.evt
Size (bytes)521,317,44077,129,280
Size497.2 MB 73.6 MB
Events in quadrant A3,289,833477,922
Events in quadrant B3,453,827483,518
Events in quadrant C3,362,729469,115
Events in quadrant D5,228,983439,646

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138062
B0141352
C0139592
D0199062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66691061.589444%
B66691362.039286%
C66691672.504124%
D66694005.997901%

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 7634 6670 0 0 0.00% 0.00%
B 7634 6670 4 4 0.05% 0.06%
C 7634 6670 0 0 0.00% 0.00%
D 7634 6670 246 246 3.22% 3.69%

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 11102 60.31 853 834 170.3
A 0 226 7338 38.2 853 834 170.3
A 3 137 6998 36.2 853 834 170.3
B 0 190 80346 493.77 849 827 161.0
B 12 111 19138 113.7 849 827 161.0
B 0 189 16995 100.39 849 827 161.0
C 14 238 131038 681.71 824 828 191.0
C 7 247 18071 90.28 824 828 191.0
C 13 61 5726 25.64 824 828 191.0
D 7 238 688037 3462.82 821 799 198.5
D 1 52 656774 3305.3 821 799 198.5
D 13 153 497488 2502.69 821 799 198.5

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