ASTROSAT CZTI

Data Quality Report

Orbit 05953

Creation date: 2024-06-27T15:01:11.253214
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_157T01_9000000772_05953cztM0_level2.evt modeM0/AS1G06_157T01_9000000772_05953cztM0_level2_quad_clean.evt
Size (bytes)163,828,80029,712,960
Size156.2 MB 28.3 MB
Events in quadrant A1,243,623170,925
Events in quadrant B1,176,755185,764
Events in quadrant C1,142,981187,823
Events in quadrant D1,224,875175,021

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064
B032
C043
D043

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02084515612
B01788112662
C01775812485
D01896613624

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168106
B0166102
C0169125
D0170122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23231064.563065%
B24941184.731355%
C2532933.672986%
D2507863.430395%

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 8740 3436 6 6 0.07% 0.17%
B 8900 3664 0 0 0.00% 0.00%
C 8345 3694 0 0 0.00% 0.00%
D 8360 3673 0 0 0.00% 0.00%

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 4 2 160640 2846.88 266 258 56.3
A 13 251 50141 885.45 266 258 56.3
A 8 192 4063 67.54 266 258 56.3
B 4 81 14926 249.71 291 283 58.6
B 0 219 14627 244.61 291 283 58.6
B 15 255 12758 212.74 291 283 58.6
C 1 16 3424 45.11 290 290 69.5
C 9 54 2896 37.51 290 290 69.5
C 13 61 2381 30.09 290 290 69.5
D 2 63 128578 1796.41 282 273 71.4
D 2 16 12998 178.16 282 273 71.4
D 1 20 6375 85.43 282 273 71.4

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