ASTROSAT CZTI

Data Quality Report

Orbit 53040

Creation date: 2025-07-19T11:18:29.503627
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_011T07_9000006488_53040cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53040cztM0_level2_quad_clean.evt
Size (bytes)1,036,702,08074,246,400
Size988.7 MB 70.8 MB
Events in quadrant A15,993,41470,489
Events in quadrant B4,045,310685,142
Events in quadrant C9,871,823500,303
Events in quadrant D7,931,295506,777

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0521280
B0170900
C0341060
D0282550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68916891100.000000%
B68921492.161927%
C6892236134.257110%
D6892150921.894951%

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 6890 6890 6411 6411 93.05% 93.05%
B 6892 6892 84 84 1.22% 1.22%
C 6892 6892 2385 2385 34.61% 34.61%
D 6892 6892 1386 1386 20.11% 20.11%

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 9 191 14599179 567552.79 94 91 25.7
A 12 80 574616 22335.18 94 91 25.7
A 7 206 340016 13214.89 94 91 25.7
B 4 81 470711 3138.14 709 684 149.8
B 10 44 275301 1833.48 709 684 149.8
B 10 254 232379 1546.91 709 684 149.8
C 1 241 4814233 30457.33 582 577 158.0
C 15 224 931710 5891.54 582 577 158.0
C 15 147 582146 3679.75 582 577 158.0
D 8 176 3112168 17362.6 623 594 179.2
D 12 17 1099539 6132.12 623 594 179.2
D 15 78 278690 1551.77 623 594 179.2

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