ASTROSAT CZTI

Data Quality Report

Orbit 37333

Creation date: 2024-06-27T21:38:35.674493
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/AS1A11_030T02_9000005310_37333cztM0_level2.evt modeM0/AS1A11_030T02_9000005310_37333cztM0_level2_quad_clean.evt
Size (bytes)576,368,64067,599,360
Size549.7 MB 64.5 MB
Events in quadrant A2,961,167435,128
Events in quadrant B2,855,668448,920
Events in quadrant C3,796,521426,647
Events in quadrant D7,481,879363,398

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118103
B0118052
C0144682
D0257032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5321160.300695%
B5321260.488630%
C53212334.378876%
D5321166331.253524%

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 7474 5322 10 10 0.13% 0.19%
B 7474 5322 10 10 0.13% 0.19%
C 7474 5322 182 182 2.44% 3.42%
D 7474 5322 1672 1672 22.37% 31.42%

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 276832 2137.7 652 641 129.2
A 13 248 71790 550.69 652 641 129.2
A 15 222 26654 201.34 652 641 129.2
B 5 255 87954 718.05 646 632 121.6
B 5 172 63692 518.55 646 632 121.6
B 0 190 63559 517.45 646 632 121.6
C 1 23 946941 6580.95 623 628 143.8
C 15 214 224170 1554.58 623 628 143.8
C 0 10 164766 1141.47 623 628 143.8
D 10 253 3876317 28897.18 554 541 134.1
D 12 227 1068876 7965.34 554 541 134.1
D 2 249 176723 1313.59 554 541 134.1

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