ASTROSAT CZTI

Data Quality Report

Orbit 14608

Creation date: 2024-06-27T16:57:27.212178
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/AS1G08_059T01_9000002150_14608cztM0_level2.evt modeM0/AS1G08_059T01_9000002150_14608cztM0_level2_quad_clean.evt
Size (bytes)548,438,400102,792,960
Size523.0 MB 98.0 MB
Events in quadrant A3,871,957664,139
Events in quadrant B3,596,537658,494
Events in quadrant C4,488,708645,443
Events in quadrant D4,152,871632,506

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164683
B0155542
C0181752
D0175872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73581181.603697%
B73581311.780375%
C7358851.155205%
D73582763.751019%

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 7784 7361 1 1 0.01% 0.01%
B 7784 7361 3 3 0.04% 0.04%
C 7784 7361 0 0 0.00% 0.00%
D 7784 7361 222 222 2.85% 3.02%

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 1 162 137770 745.68 895 875 183.6
A 0 23 76151 410.04 895 875 183.6
A 8 15 61522 330.35 895 875 183.6
B 0 214 23159 128.27 895 872 173.7
B 0 189 22879 126.66 895 872 173.7
B 0 229 22736 125.84 895 872 173.7
C 3 233 1085908 5299.24 873 877 204.8
C 13 61 6340 26.68 873 877 204.8
C 3 232 2170 6.31 873 877 204.8
D 10 199 560831 2743.13 857 836 204.1
D 12 110 183732 895.91 857 836 204.1
D 2 152 54758 264.13 857 836 204.1

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