ASTROSAT CZTI

Data Quality Report

Orbit 48384

Creation date: 2024-09-08T12:05:44.615415
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/AS1A13_029T01_9000006426_48384cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48384cztM0_level2_quad_clean.evt
Size (bytes)802,823,040167,607,360
Size765.6 MB 159.8 MB
Events in quadrant A11,043,4301,096,011
Events in quadrant B7,773,4731,098,590
Events in quadrant C4,653,4071,117,542
Events in quadrant D5,405,2231,009,246

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0399372
B0307692
C0222972
D0244112

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02220
B02220
C02220
D02220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A108845525.071665%
B108848487.791253%
C10884470.431827%
D108851691.552595%

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 11579 10887 123 123 1.06% 1.13%
B 11579 10887 416 416 3.59% 3.82%
C 11579 10887 5 5 0.04% 0.05%
D 11580 10888 99 99 0.85% 0.91%

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 10 83 6101628 24985.73 1172 1147 244.2
A 13 248 393804 1608.2 1172 1147 244.2
A 13 254 21816 84.65 1172 1147 244.2
B 12 16 1479494 6434.53 1161 1124 229.8
B 5 255 1164558 5063.79 1161 1124 229.8
B 4 21 352118 1527.68 1161 1124 229.8
C 15 208 33562 116.53 1174 1180 277.9
C 12 2 27825 95.88 1174 1180 277.9
C 14 254 8225 25.35 1174 1180 277.9
D 2 165 679828 2281.51 1166 1126 297.5
D 12 33 111049 369.52 1166 1126 297.5
D 2 249 78343 259.57 1166 1126 297.5

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