ASTROSAT CZTI

Data Quality Report

Orbit 00710

Creation date: 2024-06-27T14:01:53.019374
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/AS1P01_141T01_9000000104_00710cztM0_level2.evt modeM0/AS1P01_141T01_9000000104_00710cztM0_level2_quad_clean.evt
Size (bytes)1,002,625,92069,598,080
Size956.2 MB 66.4 MB
Events in quadrant A7,748,623426,835
Events in quadrant B7,494,806433,003
Events in quadrant C7,980,639421,835
Events in quadrant D6,740,655404,205

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273221
B0265361
C0279701
D0243031

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60291833.035329%
B6029240.398076%
C603080.132670%
D6030460.762852%

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 7179 6030 524 524 7.30% 8.69%
B 7179 6030 265 265 3.69% 4.39%
C 7180 6031 281 281 3.91% 4.66%
D 7180 6031 248 248 3.45% 4.11%

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 15 171 851291 1964.7 1798 1818 432.4
A 11 79 5333 8.13 1798 1818 432.4
A 3 111 5320 8.1 1798 1818 432.4
B 5 247 220467 498.89 1870 1886 438.1
B 5 191 80655 179.78 1870 1886 438.1
B 7 221 29152 62.23 1870 1886 438.1
C 3 31 290387 612.89 1692 1763 470.9
C 3 95 251716 530.77 1692 1763 470.9
C 3 15 239031 503.84 1692 1763 470.9
D 0 25 195950 383.51 1640 1700 506.5
D 1 4 194409 380.47 1640 1700 506.5
D 6 226 124793 243.02 1640 1700 506.5

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