ASTROSAT CZTI

Data Quality Report

Orbit 30223

Creation date: 2024-06-27T20:13:19.489195
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_071T16_9000004348_30223cztM0_level2.evt modeM0/AS1A10_071T16_9000004348_30223cztM0_level2_quad_clean.evt
Size (bytes)138,332,16035,274,240
Size131.9 MB 33.6 MB
Events in quadrant A796,849248,886
Events in quadrant B1,223,942255,071
Events in quadrant C824,963238,355
Events in quadrant D1,243,595218,769

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032521
B044651
C033701
D046561

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1440100.694444%
B1440140.972222%
C1440171.180556%
D144014410.000000%

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 1440 1440 2 2 0.14% 0.14%
B 1440 1440 6 6 0.42% 0.42%
C 1440 1440 0 0 0.00% 0.00%
D 1440 1440 122 122 8.47% 8.47%

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 8 192 11714 275.59 203 199 41.8
A 13 254 2771 61.55 203 199 41.8
A 3 137 1810 38.55 203 199 41.8
B 6 159 402170 10213.19 205 201 39.4
B 10 247 17994 452.08 205 201 39.4
B 12 111 4277 103.56 205 201 39.4
C 14 238 35453 740.44 197 199 47.6
C 10 22 7076 144.44 197 199 47.6
C 14 254 4662 93.74 197 199 47.6
D 1 52 413970 8375.0 187 184 49.4
D 7 223 46096 929.26 187 184 49.4
D 2 250 41688 840.04 187 184 49.4

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