ASTROSAT CZTI

Data Quality Report

Orbit 33461

Creation date: 2024-06-27T20:49:04.688950
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_047T10_9000004802_33461cztM0_level2.evt modeM0/AS1A11_047T10_9000004802_33461cztM0_level2_quad_clean.evt
Size (bytes)283,596,48053,449,920
Size270.5 MB 51.0 MB
Events in quadrant A1,534,892355,153
Events in quadrant B2,164,427349,617
Events in quadrant C1,719,876350,400
Events in quadrant D2,946,863331,415

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066652
B085211
C070751
D0109911

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A326740.122436%
B32671324.040404%
C3267300.918274%
D3267702.142639%

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 4819 3268 0 0 0.00% 0.00%
B 4819 3268 83 83 1.72% 2.54%
C 4819 3268 25 25 0.52% 0.76%
D 4819 3268 45 45 0.93% 1.38%

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 15 169 10161 122.99 391 383 79.5
A 13 6 6850 81.34 391 383 79.5
A 13 254 6434 76.11 391 383 79.5
B 5 172 280287 3662.13 383 372 76.4
B 5 255 204300 2667.99 383 372 76.4
B 0 230 67644 880.12 383 372 76.4
C 15 214 140653 1601.18 373 376 87.6
C 0 10 84008 954.61 373 376 87.6
C 14 254 22310 250.36 373 376 87.6
D 8 195 1215264 12090.93 373 364 100.5
D 2 250 94458 936.44 373 364 100.5
D 13 249 51655 510.46 373 364 100.5

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