ASTROSAT CZTI

Data Quality Report

Orbit 09131

Creation date: 2024-06-27T15:41:39.858311
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/AS1G07_028T01_9000001272_09131cztM0_level2.evt modeM0/AS1G07_028T01_9000001272_09131cztM0_level2_quad_clean.evt
Size (bytes)131,181,12039,072,960
Size125.1 MB 37.3 MB
Events in quadrant A1,071,880262,396
Events in quadrant B915,617270,647
Events in quadrant C889,208260,304
Events in quadrant D967,028253,752

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043757
B039541
C038931
D041961

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A185680.431034%
B185860.322928%
C185820.107643%
D1858241.291712%

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 1858 1858 7 7 0.38% 0.38%
B 1858 1858 0 0 0.00% 0.00%
C 1858 1858 0 0 0.00% 0.00%
D 1858 1858 18 18 0.97% 0.97%

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 5 141778 3002.45 228 224 47.1
A 1 162 21780 457.22 228 224 47.1
A 15 223 15915 332.82 228 224 47.1
B 0 214 9126 197.58 233 228 45.0
B 12 111 4793 101.36 233 228 45.0
B 11 111 3703 77.16 233 228 45.0
C 9 68 1856 30.16 227 228 54.0
C 13 61 1745 28.11 227 228 54.0
C 3 202 570 6.34 227 228 54.0
D 1 52 60701 1116.31 222 217 54.2
D 2 14 60254 1108.06 222 217 54.2
D 2 234 6216 110.72 222 217 54.2

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