ASTROSAT CZTI

Data Quality Report

Orbit 33630

Creation date: 2024-06-27T20:50:52.070625
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/AS1T04_076T01_9000004810_33630cztM0_level2.evt modeM0/AS1T04_076T01_9000004810_33630cztM0_level2_quad_clean.evt
Size (bytes)556,113,60071,858,880
Size530.4 MB 68.5 MB
Events in quadrant A2,751,754455,225
Events in quadrant B4,838,927431,107
Events in quadrant C3,786,538449,240
Events in quadrant D5,064,846427,502

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121993
B0184012
C0152122
D0193242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5905310.524979%
B590565811.143099%
C59051031.744285%
D59054397.434378%

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 7368 5906 21 21 0.29% 0.36%
B 7368 5906 523 523 7.10% 8.86%
C 7368 5906 92 92 1.25% 1.56%
D 7368 5906 394 394 5.35% 6.67%

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 15 237 62677 446.37 686 672 138.9
A 15 169 22090 154.19 686 672 138.9
A 13 254 8804 58.54 686 672 138.9
B 5 172 1505667 11905.81 655 638 126.4
B 5 255 495755 3916.72 655 638 126.4
B 4 251 94719 744.25 655 638 126.4
C 0 10 487274 3168.08 664 670 153.6
C 3 233 328147 2132.07 664 670 153.6
C 15 214 272659 1770.81 664 670 153.6
D 8 195 1002274 5789.42 646 634 173.0
D 13 249 644025 3718.76 646 634 173.0
D 2 250 330020 1903.83 646 634 173.0

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