ASTROSAT CZTI

Data Quality Report

Orbit 06281

Creation date: 2024-06-27T15:05:09.263376
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/AS1A02_118T01_9000000826_06281cztM0_level2.evt modeM0/AS1A02_118T01_9000000826_06281cztM0_level2_quad_clean.evt
Size (bytes)16,626,2403,882,240
Size15.9 MB 3.7 MB
Events in quadrant A146,32023,348
Events in quadrant B110,71924,292
Events in quadrant C82,99924,274
Events in quadrant D146,57723,071

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05921
B04560
C03860
D05730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A19310.518135%
B19321.036269%
C19300.000000%
D19342.072539%

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 193 193 0 0 0.00% 0.00%
B 193 193 0 0 0.00% 0.00%
C 193 193 0 0 0.00% 0.00%
D 193 193 4 4 2.07% 2.07%

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 8 15 59313 9079.75 22 21 6.5
A 13 251 1698 256.81 22 21 6.5
A 12 194 242 33.84 22 21 6.5
B 3 64 20000 3107.95 22 21 6.4
B 15 204 3093 477.88 22 21 6.4
B 0 219 359 52.58 22 21 6.4
C 13 61 180 23.89 21 21 6.7
C 1 16 93 10.82 21 21 6.7
C 3 202 58 5.56 21 21 6.7
D 2 152 33137 4769.43 21 20 6.9
D 2 63 19693 2833.26 21 20 6.9
D 12 220 7946 1141.48 21 20 6.9

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