ASTROSAT CZTI

Data Quality Report

Orbit 14233

Creation date: 2024-06-27T16:52:17.178722
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/AS1G08_084T01_9000002100_14233cztM0_level2.evt modeM0/AS1G08_084T01_9000002100_14233cztM0_level2_quad_clean.evt
Size (bytes)634,783,680113,163,840
Size605.4 MB 107.9 MB
Events in quadrant A3,647,315755,226
Events in quadrant B4,884,375736,234
Events in quadrant C4,463,252728,222
Events in quadrant D5,726,980690,674

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156492
B0194721
C0180611
D0219621

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7419470.633509%
B74194556.132902%
C7419500.673945%
D74194926.631622%

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 7680 7421 0 0 0.00% 0.00%
B 7680 7421 234 234 3.05% 3.15%
C 7680 7421 6 6 0.08% 0.08%
D 7680 7421 405 405 5.27% 5.46%

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 14 111 108652 600.42 877 859 179.5
A 8 15 80231 442.11 877 859 179.5
A 12 189 76198 419.65 877 859 179.5
B 10 16 1000361 6153.5 859 836 162.4
B 0 229 248733 1526.16 859 836 162.4
B 4 48 55509 336.59 859 836 162.4
C 3 233 1165526 5981.27 841 844 194.7
C 14 234 8763 40.67 841 844 194.7
C 3 232 6415 28.61 841 844 194.7
D 12 110 1006753 4839.75 820 798 207.9
D 8 195 502586 2414.15 820 798 207.9
D 5 222 499976 2401.59 820 798 207.9

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