ASTROSAT CZTI

Data Quality Report

Orbit 14153

Creation date: 2024-06-27T16:51:07.548899
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/AS1G08_045T01_9000002092_14153cztM0_level2.evt modeM0/AS1G08_045T01_9000002092_14153cztM0_level2_quad_clean.evt
Size (bytes)140,904,00022,288,320
Size134.4 MB 21.3 MB
Events in quadrant A971,533139,577
Events in quadrant B1,011,450145,317
Events in quadrant C989,674134,299
Events in quadrant D1,175,448129,098

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039812
B040851
C040071
D047551

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1719663.839442%
B1719683.955788%
C1719432.501454%
D1719563.257708%

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 2815 1720 0 0 0.00% 0.00%
B 2815 1721 1 1 0.04% 0.06%
C 2815 1721 0 0 0.00% 0.00%
D 2815 1721 1 1 0.04% 0.06%

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 12 96 5597 104.72 249 243 51.1
A 9 143 5098 94.96 249 243 51.1
A 0 226 2282 39.88 249 243 51.1
B 0 189 34253 711.61 244 239 47.8
B 3 209 8668 176.34 244 239 47.8
B 4 80 7574 153.46 244 239 47.8
C 3 233 62723 1127.74 237 239 55.4
C 10 22 1870 29.44 237 239 55.4
C 13 61 1636 25.21 237 239 55.4
D 1 52 121733 2093.0 241 236 58.0
D 12 110 72149 1238.83 241 236 58.0
D 2 152 31385 536.6 241 236 58.0

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