ASTROSAT CZTI

Data Quality Report

Orbit 07499

Creation date: 2024-06-27T15:20:32.047921
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/AS1T01_156T01_9000001034_07499cztM0_level2.evt modeM0/AS1T01_156T01_9000001034_07499cztM0_level2_quad_clean.evt
Size (bytes)477,262,08073,379,520
Size455.2 MB 70.0 MB
Events in quadrant A3,320,839444,148
Events in quadrant B3,507,068451,962
Events in quadrant C3,339,981442,137
Events in quadrant D3,835,815421,550

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139673
B0145402
C0141212
D0158282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66281422.142426%
B66281502.263126%
C6628961.448401%
D66281932.911889%

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 7713 6628 0 0 0.00% 0.00%
B 7713 6628 2 2 0.03% 0.03%
C 7713 6629 6 6 0.08% 0.09%
D 7713 6629 61 61 0.79% 0.92%

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 15 239 16344 89.53 853 836 173.2
A 3 1 9531 50.2 853 836 173.2
A 0 226 8442 43.91 853 836 173.2
B 0 214 89775 542.64 857 838 163.9
B 4 81 27575 163.13 857 838 163.9
B 0 219 27099 160.23 857 838 163.9
C 1 16 97590 504.87 825 831 191.6
C 8 229 22720 114.21 825 831 191.6
C 13 61 6269 28.37 825 831 191.6
D 2 152 314986 1555.26 823 799 202.0
D 2 14 194449 958.59 823 799 202.0
D 12 233 80503 394.54 823 799 202.0

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