ASTROSAT CZTI

Data Quality Report

Orbit 24119

Creation date: 2024-06-27T19:02:39.164713
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/AS1A07_134T02_9000003568_24119cztM0_level2.evt modeM0/AS1A07_134T02_9000003568_24119cztM0_level2_quad_clean.evt
Size (bytes)135,843,84029,992,320
Size129.6 MB 28.6 MB
Events in quadrant A815,310203,068
Events in quadrant B859,175205,524
Events in quadrant C774,631197,077
Events in quadrant D1,555,334185,792

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033680
B034820
C032390
D057810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A157550.317460%
B157590.571429%
C157590.571429%
D15751288.126984%

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 1575 1575 0 0 0.00% 0.00%
B 1575 1575 6 6 0.38% 0.38%
C 1575 1575 0 0 0.00% 0.00%
D 1575 1575 99 99 6.29% 6.29%

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 3 1 43619 1013.39 199 194 42.9
A 13 254 2816 61.19 199 194 42.9
A 0 226 1721 35.64 199 194 42.9
B 5 250 21233 527.74 195 190 39.9
B 0 189 19169 475.98 195 190 39.9
B 12 32 15267 378.12 195 190 39.9
C 14 238 28977 622.62 188 189 46.2
C 7 247 7695 162.34 188 189 46.2
C 3 233 3091 62.76 188 189 46.2
D 8 195 473219 9745.03 190 183 48.5
D 12 218 219156 4511.07 190 183 48.5
D 1 52 77017 1582.86 190 183 48.5

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