ASTROSAT CZTI

Data Quality Report

Orbit 26799

Creation date: 2024-06-27T19:33:05.944853
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_079T01_9000003864_26799cztM0_level2.evt modeM0/AS1A09_079T01_9000003864_26799cztM0_level2_quad_clean.evt
Size (bytes)408,954,24073,641,600
Size390.0 MB 70.2 MB
Events in quadrant A2,281,794483,353
Events in quadrant B2,167,983492,105
Events in quadrant C2,187,290474,742
Events in quadrant D5,424,579445,362

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098390
B096210
C096470
D0193660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A475710.021022%
B475740.084087%
C4758210.441362%
D475853411.223203%

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 4757 4757 0 0 0.00% 0.00%
B 4757 4757 0 0 0.00% 0.00%
C 4758 4758 2 2 0.04% 0.04%
D 4758 4758 514 514 10.80% 10.80%

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 0 13 193092 1731.35 541 530 111.2
A 13 254 7632 63.86 541 530 111.2
A 3 137 5164 41.66 541 530 111.2
B 0 229 17095 160.42 540 527 103.3
B 15 33 12380 114.77 540 527 103.3
B 12 111 12331 114.29 540 527 103.3
C 14 238 85662 687.01 526 529 123.9
C 15 208 26558 210.05 526 529 123.9
C 10 22 8690 65.86 526 529 123.9
D 1 52 3238287 26385.58 508 496 122.7
D 2 250 207674 1688.35 508 496 122.7
D 2 234 21807 173.67 508 496 122.7

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