ASTROSAT CZTI

Data Quality Report

Orbit 10657

Creation date: 2024-06-27T16:02:38.120113
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/AS1G07_076T01_9000001538_10657cztM0_level2.evt modeM0/AS1G07_076T01_9000001538_10657cztM0_level2_quad_clean.evt
Size (bytes)93,240,00024,215,040
Size88.9 MB 23.1 MB
Events in quadrant A581,564156,383
Events in quadrant B745,381160,161
Events in quadrant C705,865159,806
Events in quadrant D694,380153,724

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0283239
B0319047
C0320170
D0298640

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0282
C0282
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A138020.144928%
B1380120.869565%
C1372322.332362%
D138010.072464%

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 1399 1398 1 1 0.07% 0.07%
B 1399 1398 9 9 0.64% 0.64%
C 1399 1399 27 27 1.93% 1.93%
D 1399 1398 2 2 0.14% 0.14%

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 15 223 8884 272.27 147 143 32.1
A 15 239 3675 110.02 147 143 32.1
A 1 162 1793 51.4 147 143 32.1
B 4 239 82444 2606.09 149 145 31.6
B 4 81 44828 1414.94 149 145 31.6
B 15 204 16131 506.21 149 145 31.6
C 4 254 136679 3886.67 143 144 35.1
C 14 234 5676 157.48 143 144 35.1
C 1 0 2334 62.34 143 144 35.1
D 1 20 116396 3279.75 140 136 35.4
D 13 249 13841 386.63 140 136 35.4
D 1 52 12378 345.35 140 136 35.4

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