ASTROSAT CZTI

Data Quality Report

Orbit 28405

Creation date: 2024-06-27T19:51:25.835458
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/AS1A10_058T13_9000004088_28405cztM0_level2.evt modeM0/AS1A10_058T13_9000004088_28405cztM0_level2_quad_clean.evt
Size (bytes)155,782,08026,078,400
Size148.6 MB 24.9 MB
Events in quadrant A928,232162,711
Events in quadrant B1,033,840166,021
Events in quadrant C935,600161,044
Events in quadrant D1,679,258151,244

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040830
B043310
C040900
D062880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011
B111
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A202350.247158%
B202960.295712%
C203480.393314%
D20131095.414804%

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 2885 2036 1 1 0.03% 0.05%
B 2925 2052 4 4 0.14% 0.19%
C 2927 2055 0 0 0.00% 0.00%
D 2885 2029 91 91 3.15% 4.48%

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 47 11160 221.59 237 232 49.3
A 13 254 3170 59.57 237 232 49.3
A 3 137 2401 43.98 237 232 49.3
B 0 230 53223 1110.19 235 229 47.7
B 10 245 45019 938.32 235 229 47.7
B 12 111 5819 117.11 235 229 47.7
C 14 238 37825 672.17 229 230 55.9
C 7 220 3637 60.91 229 230 55.9
C 13 61 1617 24.8 229 230 55.9
D 8 195 476228 8562.48 224 217 55.6
D 1 52 316709 5693.06 224 217 55.6
D 2 250 20759 369.51 224 217 55.6

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