ASTROSAT CZTI

Data Quality Report

Orbit 43006

Creation date: 2024-06-27T22:46:49.441136
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/AS1T05_148T01_9000005838_43006cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43006cztM0_level2_quad_clean.evt
Size (bytes)363,890,880113,480,640
Size347.0 MB 108.2 MB
Events in quadrant A3,317,616797,840
Events in quadrant B3,067,825810,455
Events in quadrant C3,198,817768,306
Events in quadrant D3,467,475683,905

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131082
B0123872
C0124992
D0136972

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5380561.040892%
B5380220.408922%
C5380631.171004%
D53801462.713755%

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 7114 5382 25 25 0.35% 0.46%
B 7114 5382 3 3 0.04% 0.06%
C 7114 5382 60 60 0.84% 1.11%
D 7114 5382 101 101 1.42% 1.88%

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 576856 3818.23 676 665 150.9
A 15 237 102172 672.65 676 665 150.9
A 13 248 20258 129.84 676 665 150.9
B 0 186 296483 2080.05 668 654 142.2
B 4 171 127834 894.24 668 654 142.2
B 3 112 17324 117.21 668 654 142.2
C 0 239 365669 2215.37 652 657 164.8
C 15 214 221577 1340.83 652 657 164.8
C 12 249 38393 229.03 652 657 164.8
D 1 47 571108 3343.45 646 625 170.6
D 1 52 220700 1289.8 646 625 170.6
D 12 233 67294 390.73 646 625 170.6

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