ASTROSAT CZTI

Data Quality Report

Orbit 04639

Creation date: 2024-06-27T14:44:55.244450
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/AS1G05_214T01_9000000580_04639cztM0_level2.evt modeM0/AS1G05_214T01_9000000580_04639cztM0_level2_quad_clean.evt
Size (bytes)470,361,60056,050,560
Size448.6 MB 53.5 MB
Events in quadrant A2,674,906355,762
Events in quadrant B2,222,793366,050
Events in quadrant C2,034,510368,364
Events in quadrant D6,989,003271,676

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111921
B097430
C095290
D0239970

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A47601222.563025%
B476060.126050%
C476000.000000%
D4760163034.243697%

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 4760 4760 40 40 0.84% 0.84%
B 4760 4760 0 0 0.00% 0.00%
C 4760 4760 0 0 0.00% 0.00%
D 4760 4760 1492 1492 31.34% 31.34%

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 14 111 641819 5914.72 525 515 108.4
A 15 174 12155 107.36 525 515 108.4
A 12 194 5174 42.97 525 515 108.4
B 4 80 52550 498.01 535 522 104.5
B 15 204 41667 393.84 535 522 104.5
B 14 167 19996 186.4 535 522 104.5
C 13 61 4138 29.48 520 521 122.7
C 12 4 2183 13.54 520 521 122.7
C 9 247 1860 10.91 520 521 122.7
D 13 235 3831042 35902.58 436 423 106.7
D 8 112 660030 6182.18 436 423 106.7
D 2 63 355312 3326.21 436 423 106.7

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