ASTROSAT CZTI

Data Quality Report

Orbit 14289

Creation date: 2024-06-27T16:52:59.164086
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/AS1G08_014T01_9000002104_14289cztM0_level2.evt modeM0/AS1G08_014T01_9000002104_14289cztM0_level2_quad_clean.evt
Size (bytes)298,077,12034,490,880
Size284.3 MB 32.9 MB
Events in quadrant A1,785,285202,149
Events in quadrant B2,014,801203,233
Events in quadrant C1,832,429191,354
Events in quadrant D3,144,176187,125

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076041
B082581
C075771
D0119331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A367150.136203%
B3671270.735494%
C367130.081722%
D3671962.615091%

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 3672 3672 0 0 0.00% 0.00%
B 3672 3672 15 15 0.41% 0.41%
C 3672 3672 0 0 0.00% 0.00%
D 3672 3672 79 79 2.15% 2.15%

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 12 189 80546 893.27 440 431 89.7
A 8 15 6078 62.96 440 431 89.7
A 0 226 3986 39.64 440 431 89.7
B 0 229 187398 2254.67 432 420 82.9
B 3 209 42961 512.98 432 420 82.9
B 0 219 34738 413.82 432 420 82.9
C 3 233 211076 2157.33 415 418 97.6
C 13 61 2879 25.2 415 418 97.6
C 12 4 1119 7.18 415 418 97.6
D 13 122 1437090 14489.94 417 407 99.2
D 10 199 37581 374.93 417 407 99.2
D 5 222 26912 267.32 417 407 99.2

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