ASTROSAT CZTI

Data Quality Report

Orbit 48223

Creation date: 2024-08-28T15:34:37.676190
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_004T05_9000006416_48223cztM0_level2.fits modeM0/AS1C09_004T05_9000006416_48223cztM0_level2_quad_clean.evt
Size (bytes)795,873,600166,564,800
Size759.0 MB 158.8 MB
Events in quadrant A10,950,5851,101,600
Events in quadrant B5,862,2671,119,275
Events in quadrant C4,551,2811,088,132
Events in quadrant D7,273,526996,223

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03963010
B0248614
C0219363
D0291411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A106432922.743587%
B106442402.254791%
C10644410.385194%
D106463573.353372%

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 10660 10645 28 28 0.26% 0.26%
B 10661 10646 100 100 0.94% 0.94%
C 10661 10647 9 9 0.08% 0.08%
D 10661 10647 299 299 2.80% 2.81%

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 6353978 26959.29 1130 1106 235.6
A 3 14 89378 374.59 1130 1106 235.6
A 9 143 59440 247.55 1130 1106 235.6
B 4 21 542025 2451.9 1127 1093 220.6
B 0 200 271471 1225.55 1127 1093 220.6
B 12 18 184266 830.28 1127 1093 220.6
C 14 254 83046 310.32 1118 1124 264.0
C 0 207 56527 209.87 1118 1124 264.0
C 3 233 25070 90.71 1118 1124 264.0
D 2 165 1941601 7072.72 1107 1072 274.4
D 4 222 302578 1098.91 1107 1072 274.4
D 1 20 179572 650.59 1107 1072 274.4

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