ASTROSAT CZTI

Data Quality Report

Orbit 31965

Creation date: 2024-06-27T20:34:39.942431
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/AS1A10_094T30_9000004666_31965cztM0_level2.evt modeM0/AS1A10_094T30_9000004666_31965cztM0_level2_quad_clean.evt
Size (bytes)67,507,2002,805,120
Size64.4 MB 2.7 MB
Events in quadrant A380,9054,753
Events in quadrant B610,7824,895
Events in quadrant C472,3784,556
Events in quadrant D521,2804,943

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016729
B0249217
C0195115
D0208426

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82800.000000%
B82610.121065%
C82640.484262%
D824242.912621%

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 1118 834 0 0 0.00% 0.00%
B 1122 833 0 0 0.00% 0.00%
C 1122 831 0 0 0.00% 0.00%
D 1121 831 23 23 2.05% 2.77%

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 14 238 2398 105.17 97 95 21.9
A 13 254 1579 67.77 97 95 21.9
A 12 96 1109 46.3 97 95 21.9
B 6 159 226996 11019.41 97 94 20.6
B 12 111 2339 109.03 97 94 20.6
B 11 111 2083 96.6 97 94 20.6
C 3 233 83117 3486.65 93 93 23.8
C 14 238 15198 634.34 93 93 23.8
C 0 10 7808 324.0 93 93 23.8
D 13 249 86313 3621.87 91 88 23.8
D 2 250 30180 1264.01 91 88 23.8
D 8 195 30106 1260.9 91 88 23.8

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