ASTROSAT CZTI

Data Quality Report

Orbit 04660

Creation date: 2024-06-27T14:45:16.283735
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/AS1G05_167T01_9000000584_04660cztM0_level2.evt modeM0/AS1G05_167T01_9000000584_04660cztM0_level2_quad_clean.evt
Size (bytes)58,596,48011,234,880
Size55.9 MB 10.7 MB
Events in quadrant A310,23572,988
Events in quadrant B326,29974,264
Events in quadrant C312,48672,973
Events in quadrant D776,62564,743

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013651
B013670
C013600
D027850

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67900.000000%
B67900.000000%
C67900.000000%
D679598.689249%

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 679 679 0 0 0.00% 0.00%
B 679 679 0 0 0.00% 0.00%
C 679 679 0 0 0.00% 0.00%
D 679 679 70 70 10.31% 10.31%

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 16 3725 199.3 79 78 18.3
A 0 226 758 37.16 79 78 18.3
A 12 194 756 37.05 79 78 18.3
B 15 204 6993 396.49 82 80 17.4
B 12 111 1308 70.43 82 80 17.4
B 14 167 1053 55.81 82 80 17.4
C 13 61 669 28.92 80 80 20.4
C 3 202 203 6.04 80 80 20.4
C -1 -1 -1 -1.0 80 80 20.4
D 8 112 368511 18809.38 74 72 19.6
D 13 235 95594 4876.54 74 72 19.6
D 2 234 16612 844.39 74 72 19.6

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