ASTROSAT CZTI

Data Quality Report

Orbit 06601

Creation date: 2024-06-27T15:09:16.952719
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/AS1A02_170T02_9000000892_06601cztM0_level2.evt modeM0/AS1A02_170T02_9000000892_06601cztM0_level2_quad_clean.evt
Size (bytes)408,113,28063,544,320
Size389.2 MB 60.6 MB
Events in quadrant A1,956,987425,087
Events in quadrant B2,550,823416,880
Events in quadrant C1,980,752420,808
Events in quadrant D5,582,012361,415

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087292
B0104771
C088381
D0195891

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4250240.564706%
B42501964.611765%
C4250280.658824%
D425086220.282353%

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 5530 4251 0 0 0.00% 0.00%
B 5530 4251 97 97 1.75% 2.28%
C 5530 4251 6 6 0.11% 0.14%
D 5530 4251 683 683 12.35% 16.07%

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 8 15 11544 108.8 503 492 101.6
A 15 239 7890 72.83 503 492 101.6
A 0 226 4873 43.13 503 492 101.6
B 0 219 335510 3610.96 496 485 92.8
B 4 48 114279 1226.49 496 485 92.8
B 15 204 62771 671.33 496 485 92.8
C 9 247 52032 460.68 487 490 111.9
C 9 54 12861 110.57 487 490 111.9
C 3 9 7284 60.72 487 490 111.9
D 8 195 1895376 17040.56 456 441 111.2
D 13 105 779481 7005.66 456 441 111.2
D 2 63 390029 3503.44 456 441 111.2

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