ASTROSAT CZTI

Data Quality Report

Orbit 44328

Creation date: 2024-06-27T23:02:14.137860
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_004T09_9000005992_44328cztM0_level2.fits modeM0/AS1A13_004T09_9000005992_44328cztM0_level2_quad_clean.evt
Size (bytes)449,602,560103,547,520
Size428.8 MB 98.8 MB
Events in quadrant A4,317,172713,792
Events in quadrant B3,788,238707,934
Events in quadrant C2,867,694696,442
Events in quadrant D5,202,010597,190

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181971
B0151491
C0125941
D0193923

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60181903.157195%
B60183575.932203%
C60181041.728149%
D601867211.166500%

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 7123 6018 8 8 0.11% 0.13%
B 7123 6018 180 180 2.53% 2.99%
C 7123 6018 3 3 0.04% 0.05%
D 7124 6019 499 499 7.00% 8.29%

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 10 83 1399910 9335.97 727 711 149.9
A 7 3 65287 430.87 727 711 149.9
A 10 248 21464 138.47 727 711 149.9
B 5 172 489052 3542.19 706 684 137.9
B 5 255 170643 1232.73 706 684 137.9
B 0 219 77998 560.77 706 684 137.9
C 14 254 71412 429.18 705 708 164.7
C 3 233 31011 183.94 705 708 164.7
C 1 3 11837 67.55 705 708 164.7
D 13 249 1331305 7743.18 687 666 171.8
D 1 20 289878 1682.97 687 666 171.8
D 5 222 275302 1598.15 687 666 171.8

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