ASTROSAT CZTI

Data Quality Report

Orbit 07815

Creation date: 2024-06-27T15:24:21.021901
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_032T01_9000001074_07815cztM0_level2.evt modeM0/AS1G06_032T01_9000001074_07815cztM0_level2_quad_clean.evt
Size (bytes)447,693,120106,217,280
Size427.0 MB 101.3 MB
Events in quadrant A3,010,655691,510
Events in quadrant B3,252,997725,823
Events in quadrant C3,056,294701,401
Events in quadrant D3,799,134647,319

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132023
B0137412
C0132332
D0157762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6460130.201238%
B6460500.773994%
C646090.139319%
D64602303.560372%

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 7755 6461 0 0 0.00% 0.00%
B 7755 6461 17 17 0.22% 0.26%
C 7755 6461 0 0 0.00% 0.00%
D 7755 6460 164 164 2.11% 2.54%

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 13 14 24684 153.4 774 757 156.0
A 3 1 8600 50.28 774 757 156.0
A 0 226 7208 41.36 774 757 156.0
B 4 239 100905 682.43 793 774 146.7
B 0 214 30440 202.18 793 774 146.7
B 0 219 14741 95.19 793 774 146.7
C 1 16 12449 65.27 778 782 178.7
C 12 4 7474 37.44 778 782 178.7
C 13 61 6034 29.38 778 782 178.7
D 7 71 552069 3040.46 754 732 181.3
D 2 152 145195 796.67 754 732 181.3
D 12 233 129548 710.38 754 732 181.3

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