ASTROSAT CZTI

Data Quality Report

Orbit 14492

Creation date: 2024-06-27T16:55:57.297012
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/AS1G08_034T02_9000002136_14492cztM0_level2.evt modeM0/AS1G08_034T02_9000002136_14492cztM0_level2_quad_clean.evt
Size (bytes)317,039,04032,172,480
Size302.4 MB 30.7 MB
Events in quadrant A2,409,071165,789
Events in quadrant B2,330,450170,596
Events in quadrant C2,359,458167,716
Events in quadrant D2,206,158164,173

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113241338
B0111921475
C0110601382
D0108711323

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010220
B010214
C010317
D010315

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062
B084
C040
D062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A43371934.450081%
B43251794.138728%
C4365701.603666%
D43561272.915519%

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 5409 4597 55 55 1.02% 1.20%
B 5411 4573 7 7 0.13% 0.15%
C 5411 4631 0 0 0.00% 0.00%
D 5409 4608 36 36 0.67% 0.78%

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 4 2 150006 1306.91 545 532 114.4
A 0 23 117308 1021.02 545 532 114.4
A 8 15 16612 140.59 545 532 114.4
B 4 142 68118 630.64 545 532 107.2
B 0 189 28065 256.91 545 532 107.2
B 0 190 18861 171.03 545 532 107.2
C 3 233 164813 1316.43 534 535 124.8
C 0 207 107098 853.93 534 535 124.8
C 8 128 4190 29.29 534 535 124.8
D 10 199 130380 960.73 532 519 135.2
D 15 0 29796 216.6 532 519 135.2
D 2 234 17976 129.15 532 519 135.2

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