ASTROSAT CZTI

Data Quality Report

Orbit 25403

Creation date: 2024-06-27T19:17:15.321634
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/AS1A09_057T04_9000003712_25403cztM0_level2.evt modeM0/AS1A09_057T04_9000003712_25403cztM0_level2_quad_clean.evt
Size (bytes)457,801,92080,651,520
Size436.6 MB 76.9 MB
Events in quadrant A3,133,346529,768
Events in quadrant B3,087,957530,796
Events in quadrant C3,008,962499,682
Events in quadrant D4,261,143496,977

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125370
B0122630
C0120730
D0168870

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5509701.270648%
B55091081.960428%
C55091021.851516%
D55091552.813578%

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 6854 5509 0 0 0.00% 0.00%
B 6854 5509 25 25 0.36% 0.45%
C 6854 5509 0 0 0.00% 0.00%
D 6854 5509 80 80 1.17% 1.45%

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 6 16 109753 711.96 779 767 153.1
A 15 173 20145 126.59 779 767 153.1
A 13 254 7518 44.1 779 767 153.1
B 15 32 76911 543.81 753 737 140.1
B 0 229 33779 235.89 753 737 140.1
B 12 111 16537 112.8 753 737 140.1
C 14 238 120530 714.0 729 737 167.8
C 5 112 18608 106.52 729 737 167.8
C 7 247 9085 49.76 729 737 167.8
D 8 195 722980 3984.54 754 734 181.3
D 1 52 396490 2183.34 754 734 181.3
D 7 238 218203 1199.75 754 734 181.3

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