ASTROSAT CZTI

Data Quality Report

Orbit 22468

Creation date: 2024-06-27T18:41:31.371774
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_065T01_9000003338_22468cztM0_level2.evt modeM0/AS1A07_065T01_9000003338_22468cztM0_level2_quad_clean.evt
Size (bytes)206,061,12059,742,720
Size196.5 MB 57.0 MB
Events in quadrant A1,418,077399,406
Events in quadrant B1,579,459405,302
Events in quadrant C1,440,736389,843
Events in quadrant D1,578,102382,485

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066141
B068721
C066291
D071331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A326540.122511%
B3265110.336907%
C3265100.306279%
D3265140.428790%

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 3265 3265 0 0 0.00% 0.00%
B 3265 3265 6 6 0.18% 0.18%
C 3265 3265 0 0 0.00% 0.00%
D 3265 3265 16 16 0.49% 0.49%

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 4423 53.88 367 360 75.4
A 3 137 3221 37.94 367 360 75.4
A 0 226 3064 35.86 367 360 75.4
B 0 244 110327 1518.34 369 360 72.4
B 5 172 23696 322.21 369 360 72.4
B 12 111 8771 116.13 369 360 72.4
C 14 238 57223 680.55 353 357 83.6
C 10 22 2623 27.12 353 357 83.6
C 13 61 2554 26.29 353 357 83.6
D 1 52 198402 2263.68 355 346 87.5
D 1 20 18925 212.35 355 346 87.5
D 2 234 12871 143.15 355 346 87.5

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