ASTROSAT CZTI

Data Quality Report

Orbit 30540

Creation date: 2024-06-27T20:16:28.364131
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/AS1A10_053T13_9000004394_30540cztM0_level2.evt modeM0/AS1A10_053T13_9000004394_30540cztM0_level2_quad_clean.evt
Size (bytes)497,255,04090,492,480
Size474.2 MB 86.3 MB
Events in quadrant A3,128,923598,836
Events in quadrant B4,780,436594,650
Events in quadrant C3,467,004561,015
Events in quadrant D3,278,240568,676

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128671
B0184601
C0139131
D0132571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5964651.089873%
B59641071.794098%
C59641793.001341%
D5964480.804829%

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 7139 5965 1 1 0.01% 0.02%
B 7139 5965 17 17 0.24% 0.28%
C 7139 5965 51 51 0.71% 0.85%
D 7139 5965 3 3 0.04% 0.05%

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 12 96 29607 181.31 800 785 159.0
A 8 192 11802 69.31 800 785 159.0
A 13 254 11386 66.69 800 785 159.0
B 6 159 1618760 11101.38 774 757 145.7
B 4 171 62604 424.34 774 757 145.7
B 0 229 26126 174.06 774 757 145.7
C 10 22 377443 2166.81 746 753 173.8
C 14 238 126975 726.06 746 753 173.8
C 0 10 20622 114.29 746 753 173.8
D 8 195 231793 1267.77 777 761 182.2
D 13 104 30698 164.28 777 761 182.2
D 2 250 26703 142.36 777 761 182.2

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