ASTROSAT CZTI

Data Quality Report

Orbit 32974

Creation date: 2024-06-27T20:44:06.907204
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/AS1C07_003T01_9000004754_32974cztM0_level2.evt modeM0/AS1C07_003T01_9000004754_32974cztM0_level2_quad_clean.evt
Size (bytes)434,554,56077,878,080
Size414.4 MB 74.3 MB
Events in quadrant A2,487,964519,038
Events in quadrant B2,852,934532,842
Events in quadrant C2,780,863494,738
Events in quadrant D4,694,572456,053

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103403
B0113932
C0112822
D0175652

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A507050.098619%
B5070961.893491%
C5070901.775148%
D50702985.877712%

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 7162 5071 0 0 0.00% 0.00%
B 7162 5071 63 63 0.88% 1.24%
C 7162 5071 64 64 0.89% 1.26%
D 7162 5071 291 291 4.06% 5.74%

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 13 254 9172 67.06 638 630 127.4
A 9 143 6668 47.4 638 630 127.4
A 3 137 5683 39.67 638 630 127.4
B 5 172 263943 2192.77 640 627 120.1
B 5 200 58502 481.95 640 627 120.1
B 12 111 13663 108.55 640 627 120.1
C 0 10 234191 1657.14 611 618 140.9
C 14 67 41206 287.96 611 618 140.9
C 9 54 32197 224.04 611 618 140.9
D 8 195 982371 6404.34 591 580 153.3
D 7 80 564238 3676.81 591 580 153.3
D 12 227 287284 1870.2 591 580 153.3

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