ASTROSAT CZTI

Data Quality Report

Orbit 24221

Creation date: 2024-06-27T19:03:37.915581
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_010T12_9000003582_24221cztM0_level2.evt modeM0/AS1A07_010T12_9000003582_24221cztM0_level2_quad_clean.evt
Size (bytes)142,623,36035,055,360
Size136.0 MB 33.4 MB
Events in quadrant A819,178235,777
Events in quadrant B1,155,493234,712
Events in quadrant C831,939230,113
Events in quadrant D1,382,355223,347

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037590
B047030
C037860
D054690

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A187830.159744%
B1879331.756253%
C187930.159659%
D1879683.618946%

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 1878 1878 0 0 0.00% 0.00%
B 1879 1879 27 27 1.44% 1.44%
C 1879 1879 0 0 0.00% 0.00%
D 1879 1879 67 67 3.57% 3.57%

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 13 254 3235 67.47 211 207 44.9
A 3 1 2669 54.85 211 207 44.9
A 0 226 1904 37.81 211 207 44.9
B 0 245 287134 6927.32 207 202 41.4
B 12 32 19462 464.99 207 202 41.4
B 5 172 16166 385.41 207 202 41.4
C 14 238 31309 661.76 197 198 47.0
C 2 16 11686 244.36 197 198 47.0
C 7 247 9785 203.93 197 198 47.0
D 12 233 433567 8525.63 200 193 50.8
D 8 195 152243 2991.23 200 193 50.8
D 7 238 20658 402.6 200 193 50.8

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