ASTROSAT CZTI

Data Quality Report

Orbit 43967

Creation date: 2024-06-27T22:57:46.999381
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/AS1A13_065T06_9000005924_43967cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43967cztM0_level2_quad_clean.evt
Size (bytes)577,494,72097,519,680
Size550.7 MB 93.0 MB
Events in quadrant A9,937,405470,648
Events in quadrant B3,272,797736,337
Events in quadrant C2,908,451701,654
Events in quadrant D4,786,645620,147

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0337701
B0138771
C0128551
D0185221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6078232838.302073%
B6079791.299556%
C6079160.263201%
D60792664.375720%

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 7302 6078 2226 2226 30.48% 36.62%
B 7303 6079 43 43 0.59% 0.71%
C 7303 6078 15 15 0.21% 0.25%
D 7303 6078 272 272 3.72% 4.48%

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 15 223 5294260 43053.13 589 578 123.0
A 14 238 1468331 11937.13 589 578 123.0
A 10 83 874025 7103.68 589 578 123.0
B 0 213 285293 2081.89 702 681 136.7
B 5 172 112346 816.81 702 681 136.7
B 0 183 37278 267.7 702 681 136.7
C 14 254 130210 792.9 693 698 163.3
C 3 233 37600 225.92 693 698 163.3
C 12 16 18916 111.53 693 698 163.3
D 12 17 694319 3950.33 681 658 175.6
D 5 184 532464 3028.58 681 658 175.6
D 5 222 175677 996.72 681 658 175.6

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