ASTROSAT CZTI

Data Quality Report

Orbit 12535

Creation date: 2024-06-27T16:28:48.902114
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/AS1A04_130T01_9000001856_12535cztM0_level2.evt modeM0/AS1A04_130T01_9000001856_12535cztM0_level2_quad_clean.evt
Size (bytes)105,451,20010,304,640
Size100.6 MB 9.8 MB
Events in quadrant A818,20750,378
Events in quadrant B785,11451,232
Events in quadrant C730,27849,236
Events in quadrant D753,28147,318

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033322
B032061
C030771
D032201

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A152810.065445%
B152820.130890%
C152810.065445%
D152830.196335%

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 1529 1529 0 0 0.00% 0.00%
B 1529 1529 1 1 0.07% 0.07%
C 1529 1529 0 0 0.00% 0.00%
D 1529 1529 2 2 0.13% 0.13%

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 1 162 37152 933.08 186 183 39.6
A 1 178 22052 551.97 186 183 39.6
A 1 161 18671 466.63 186 183 39.6
B 4 239 24611 649.11 190 185 37.6
B 0 205 7810 202.63 190 185 37.6
B 10 244 4614 117.7 190 185 37.6
C 13 61 1372 26.21 187 188 45.2
C 3 202 467 6.18 187 188 45.2
C 8 222 444 5.67 187 188 45.2
D 1 52 22540 494.23 182 176 45.2
D 10 199 12844 279.96 182 176 45.2
D 8 195 12294 267.8 182 176 45.2

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