ASTROSAT CZTI

Data Quality Report

Orbit 45454

Creation date: 2024-06-27T23:12:28.591265
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_041T15_9000006086_45454cztM0_level2.fits modeM0/AS1A13_041T15_9000006086_45454cztM0_level2_quad_clean.evt
Size (bytes)283,656,96065,237,760
Size270.5 MB 62.2 MB
Events in quadrant A3,300,175429,448
Events in quadrant B2,327,642438,248
Events in quadrant C1,876,163430,921
Events in quadrant D2,671,740383,616

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012781283
B010010190
C08840130
D010996262

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0850
D0851

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4131170.411523%
B41741162.779109%
C4171120.287701%
D41441283.088803%

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 4251 4219 3 3 0.07% 0.07%
B 4251 4228 67 67 1.58% 1.58%
C 4252 4228 13 13 0.31% 0.31%
D 4252 4214 99 99 2.33% 2.35%

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 1539805 16323.66 445 435 94.3
A 13 248 19221 199.21 445 435 94.3
A 0 243 7521 75.14 445 435 94.3
B 5 172 183509 2058.62 444 431 88.9
B 12 2 136240 1527.1 444 431 88.9
B 15 201 116666 1307.0 444 431 88.9
C 14 96 97280 927.77 440 443 104.4
C 14 254 22683 213.08 440 443 104.4
C 0 239 13644 126.48 440 443 104.4
D 13 249 333243 3036.31 432 417 109.6
D 1 52 182045 1656.96 432 417 109.6
D 4 222 167495 1524.22 432 417 109.6

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