ASTROSAT CZTI

Data Quality Report

Orbit 03270

Creation date: 2024-06-27T14:26:55.800213
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/AS1G05_002T02_9000000444_03270cztM0_level2.evt modeM0/AS1G05_002T02_9000000444_03270cztM0_level2_quad_clean.evt
Size (bytes)437,279,04076,884,480
Size417.0 MB 73.3 MB
Events in quadrant A2,799,192477,259
Events in quadrant B3,413,663489,045
Events in quadrant C3,559,270468,656
Events in quadrant D3,046,444457,286

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127013
B0142022
C0148352
D0136302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6246100.160102%
B6246300.480307%
C62461692.705732%
D6246560.896574%

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 7526 6247 0 0 0.00% 0.00%
B 7526 6247 2 2 0.03% 0.03%
C 7526 6247 146 146 1.94% 2.34%
D 7526 6247 43 43 0.57% 0.69%

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 0 118 14612 94.95 720 707 146.4
A 0 226 8657 54.29 720 707 146.4
A 12 194 7524 46.55 720 707 146.4
B 15 204 485227 3431.86 740 722 141.2
B 2 249 36222 251.45 740 722 141.2
B 6 205 14743 99.31 740 722 141.2
C 14 223 704105 4377.47 699 704 160.7
C 2 53 61519 378.47 699 704 160.7
C 6 80 23853 144.06 699 704 160.7
D 13 223 224432 1346.14 691 671 166.2
D 5 233 93295 557.22 691 671 166.2
D 13 239 35113 207.2 691 671 166.2

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