ASTROSAT CZTI

Data Quality Report

Orbit 51297

Creation date: 2025-03-23T14:11:51.474933
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/AS1C07_001T03_9000006456_51297cztM0_level2.fits modeM0/AS1C07_001T03_9000006456_51297cztM0_level2_quad_clean.evt
Size (bytes)1,054,365,12078,652,800
Size1005.5 MB 75.0 MB
Events in quadrant A7,310,106587,980
Events in quadrant B5,532,318705,908
Events in quadrant C17,594,01716,694
Events in quadrant D8,033,795566,416

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268350
B0215840
C0571890
D0289340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A723782411.385933%
B72382753.799392%
C7238709698.038132%
D72385217.198121%

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 7237 7237 578 578 7.99% 7.99%
B 7238 7238 121 121 1.67% 1.67%
C 7238 7238 5855 5855 80.89% 80.89%
D 7238 7238 637 637 8.80% 8.80%

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 12 250 1922759 11042.76 701 684 174.1
A 12 3 1105796 6349.12 701 684 174.1
A 9 191 428561 2458.25 701 684 174.1
B 10 254 1937502 12415.19 730 705 156.0
B 10 247 185476 1184.41 730 705 156.0
B 5 172 114427 728.98 730 705 156.0
C 15 198 14561118 351132.63 143 141 41.5
C 4 12 2103082 50711.65 143 141 41.5
C 12 252 70795 1703.8 143 141 41.5
D 8 176 3154968 16173.31 692 667 195.0
D 7 60 713089 3652.86 692 667 195.0
D 11 176 273736 1400.13 692 667 195.0

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