ASTROSAT CZTI

Data Quality Report

Orbit 20240207_A13_049T07_9000006056_level2

Creation date: 2024-02-09T13:28:15.629801
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/AS1A13_049T07_9000006056cztM0_level2.fits modeM0/AS1A13_049T07_9000006056cztM0_level2_quad_clean.evt
Size (bytes)794,903,040812,908,800
Size758.1 MB 775.3 MB
Events in quadrant A4,685,8904,851,590
Events in quadrant B4,582,3384,930,865
Events in quadrant C4,802,8224,737,804
Events in quadrant D3,837,1243,941,149

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02854620
B02059170
C01951290
D03118890

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018220
B018220
C018220
D018220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8983232463.613412%
B8982529483.281937%
C8982215321.705596%
D898001156312.876392%

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 99924 89838 0 0 0.00% 0.00%
B 99924 89825 0 0 0.00% 0.00%
C 99924 89834 0 0 0.00% 0.00%
D 99924 89673 0 0 0.00% 0.00%

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 7 110 3921 8.82 1221 1135 315.9
A 15 236 3737 8.24 1221 1135 315.9
A 0 29 3654 7.97 1221 1135 315.9
B 2 9 4249 13.14 1210 1151 235.7
B 2 8 3433 9.68 1210 1151 235.7
B 3 17 3408 9.58 1210 1151 235.7
C 3 202 3684 7.76 1269 1182 322.5
C 3 203 3578 7.43 1269 1182 322.5
C 1 81 3574 7.42 1269 1182 322.5
D 10 189 2865 6.14 1105 1005 303.0
D 15 47 2773 5.83 1105 1005 303.0
D 6 38 2739 5.72 1105 1005 303.0

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