ASTROSAT CZTI

Data Quality Report

Orbit 46006

Creation date: 2024-06-27T23:18:40.729682
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_012T08_9000006150_46006cztM0_level2.fits modeM0/AS1A13_012T08_9000006150_46006cztM0_level2_quad_clean.evt
Size (bytes)144,924,48030,893,760
Size138.2 MB 29.5 MB
Events in quadrant A1,677,488205,705
Events in quadrant B1,832,123207,213
Events in quadrant C800,105199,362
Events in quadrant D903,974183,715

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062310
B068220
C038270
D040530

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1912201.046025%
B1913753.920544%
C191300.000000%
D191320.104548%

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 1912 1912 14 14 0.73% 0.73%
B 1913 1913 52 52 2.72% 2.72%
C 1913 1913 0 0 0.00% 0.00%
D 1913 1913 1 1 0.05% 0.05%

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 10 83 840319 19072.69 205 200 44.0
A 15 14 41128 929.16 205 200 44.0
A 13 254 3186 67.79 205 200 44.0
B 3 112 941606 22638.4 202 196 41.6
B 0 186 49249 1179.59 202 196 41.6
B 4 171 28511 680.9 202 196 41.6
C 3 233 1718 30.61 204 204 49.5
C 13 61 1367 23.52 204 204 49.5
C 14 67 878 13.63 204 204 49.5
D 1 52 35311 654.04 206 199 53.7
D 5 235 29204 540.28 206 199 53.7
D 2 233 9518 173.59 206 199 53.7

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