ASTROSAT CZTI

Data Quality Report

Orbit 14686

Creation date: 2024-06-27T16:58:27.428264
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/AS1A04_101T01_9000002170_14686cztM0_level2.evt modeM0/AS1A04_101T01_9000002170_14686cztM0_level2_quad_clean.evt
Size (bytes)270,086,40045,938,880
Size257.6 MB 43.8 MB
Events in quadrant A1,927,879281,757
Events in quadrant B1,985,914279,388
Events in quadrant C2,195,062276,294
Events in quadrant D1,799,189272,841

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080651
B083211
C087971
D081051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A397190.226643%
B3971100.251826%
C397150.125913%
D397140.100730%

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 3972 3972 0 0 0.00% 0.00%
B 3972 3972 0 0 0.00% 0.00%
C 3972 3972 0 0 0.00% 0.00%
D 3972 3972 1 1 0.03% 0.03%

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 49990 500.44 477 467 99.0
A 12 189 31112 309.67 477 467 99.0
A 1 162 6378 59.73 477 467 99.0
B 10 16 95199 1041.82 472 460 90.9
B 0 205 23601 254.48 472 460 90.9
B 4 173 13957 148.42 472 460 90.9
C 3 233 392963 3646.12 461 464 107.6
C 13 61 3340 26.72 461 464 107.6
C 14 234 3192 25.34 461 464 107.6
D 2 234 17021 144.54 460 448 114.7
D 13 172 11231 94.04 460 448 114.7
D 2 120 9547 79.36 460 448 114.7

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