ASTROSAT CZTI

Data Quality Report

Orbit 47258

Creation date: 2024-06-27T23:33:57.115223
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/AS1C09_008T03_9000006306_47258cztM0_level2.fits modeM0/AS1C09_008T03_9000006306_47258cztM0_level2_quad_clean.evt
Size (bytes)126,817,92028,756,800
Size120.9 MB 27.4 MB
Events in quadrant A1,874,401184,433
Events in quadrant B898,818198,631
Events in quadrant C713,845190,456
Events in quadrant D1,076,633176,408

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066961
B038001
C033661
D043561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16481197.220874%
B1648321.941748%
C164810.060680%
D1648382.305825%

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 1648 1648 50 50 3.03% 3.03%
B 1648 1648 18 18 1.09% 1.09%
C 1648 1648 0 0 0.00% 0.00%
D 1648 1648 44 44 2.67% 2.67%

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 10 83 1035662 26936.21 178 175 38.4
A 9 191 146063 3795.0 178 175 38.4
A 13 254 2721 66.23 178 175 38.4
B 5 32 77239 2036.83 184 178 37.8
B 0 200 31827 836.53 184 178 37.8
B 5 172 28901 759.19 184 178 37.8
C 8 111 5728 126.56 179 180 43.8
C 14 254 3242 69.84 179 180 43.8
C 10 20 2037 42.35 179 180 43.8
D 12 1 356787 7863.76 176 169 45.3
D 11 192 25261 553.3 176 169 45.3
D 13 171 8795 190.21 176 169 45.3

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