ASTROSAT CZTI

Data Quality Report

Orbit 30953

Creation date: 2024-06-27T20:21:36.025867
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_058T11_9000004474_30953cztM0_level2.evt modeM0/AS1A10_058T11_9000004474_30953cztM0_level2_quad_clean.evt
Size (bytes)175,648,32033,468,480
Size167.5 MB 31.9 MB
Events in quadrant A1,088,640217,484
Events in quadrant B1,679,657217,620
Events in quadrant C1,242,221211,752
Events in quadrant D1,162,868212,611

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A046133
B065692
C049782
D047622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21152109.929078%
B211527212.860520%
C211522910.827423%
D21151888.888889%

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 2225 2115 0 0 0.00% 0.00%
B 2225 2115 0 0 0.00% 0.00%
C 2225 2115 4 4 0.18% 0.19%
D 2225 2116 5 5 0.22% 0.24%

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 13 254 3091 47.57 282 274 59.2
A 3 137 3022 46.4 282 274 59.2
A 0 226 2282 33.91 282 274 59.2
B 6 159 574540 10171.15 271 262 56.5
B 0 190 18983 331.57 271 262 56.5
B 0 183 9797 168.88 271 262 56.5
C 3 233 86747 1340.11 266 266 64.5
C 0 10 73605 1136.46 266 266 64.5
C 14 238 40020 616.03 266 266 64.5
D 8 195 54841 764.34 276 268 71.4
D 15 47 27160 376.64 276 268 71.4
D 2 250 19433 268.42 276 268 71.4

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