ASTROSAT CZTI

Data Quality Report

Orbit 43303

Creation date: 2024-06-27T22:50:23.094410
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/AS1A12_088T25_9000005866_43303cztM0_level2.fits modeM0/AS1A12_088T25_9000005866_43303cztM0_level2_quad_clean.evt
Size (bytes)77,630,40020,903,040
Size74.0 MB 19.9 MB
Events in quadrant A790,049137,886
Events in quadrant B660,643144,863
Events in quadrant C610,882137,709
Events in quadrant D716,117122,635

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031951
B026821
C024481
D028941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1194181.507538%
B1193131.089690%
C119310.083822%
D1193453.772003%

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 3107 1195 7 7 0.23% 0.59%
B 3106 1194 4 4 0.13% 0.34%
C 3106 1194 0 0 0.00% 0.00%
D 3106 1194 35 35 1.13% 2.93%

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 178146 5567.1 142 139 32.0
A 15 237 22337 694.23 142 139 32.0
A 15 223 17877 554.75 142 139 32.0
B 5 172 43082 1396.54 142 138 30.8
B 0 190 37243 1206.66 142 138 30.8
B 0 189 16787 541.43 142 138 30.8
C 15 214 53623 1515.75 140 141 35.3
C 14 254 7627 212.16 140 141 35.3
C 3 233 2111 55.83 140 141 35.3
D 13 249 72070 2030.24 136 131 35.4
D 2 249 64625 1820.13 136 131 35.4
D 7 96 17957 503.08 136 131 35.4

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