ASTROSAT CZTI

Data Quality Report

Orbit 07300

Creation date: 2024-06-27T15:18:13.415443
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/AS1G06_137T02_9000001002_07300cztM0_level2.evt modeM0/AS1G06_137T02_9000001002_07300cztM0_level2_quad_clean.evt
Size (bytes)187,237,44039,983,040
Size178.6 MB 38.1 MB
Events in quadrant A1,337,210253,107
Events in quadrant B1,302,735261,550
Events in quadrant C1,305,286259,778
Events in quadrant D1,543,666246,950

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0575211
B0566310
C057274
D064831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26342007.593014%
B26341997.555049%
C26361606.069803%
D26372218.380736%

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 2697 2636 0 0 0.00% 0.00%
B 2697 2637 0 0 0.00% 0.00%
C 2697 2638 1 1 0.04% 0.04%
D 2697 2638 39 39 1.45% 1.48%

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 53272 750.52 330 322 70.6
A 13 170 6079 81.6 330 322 70.6
A 3 1 4455 58.58 330 322 70.6
B 4 81 16123 232.39 331 321 68.0
B 12 111 7241 101.77 331 321 68.0
B 11 111 5743 79.74 331 321 68.0
C 7 247 27900 357.23 323 324 77.2
C 9 68 11367 143.05 323 324 77.2
C 1 16 3999 47.61 323 324 77.2
D 2 216 168808 2070.09 321 307 81.4
D 2 14 123978 1519.34 321 307 81.4
D 12 233 26780 325.23 321 307 81.4

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